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Bumps on Skin

MedicineNet - Bumps on Skin

Bumps on Skin Symptoms & Signs

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Symptoms & Signs

People often describe localized swollen areas on, or under, the skin as lumps or bumps. While bumps on, or under, the skin may result from conditions that give rise to a skin rash, many other conditions can result in solitary raised lumps on the skin. Infections, tumors, and the body's response to trauma or injury can all lead to lumps or bumps that appear to be located on or underneath the skin.

Depending upon the cause, skin lumps or bumps may vary in size and be firm or soft to the touch. The overlying skin may be reddened or ulcerated. Skin bumps may or may not be painful or tender, depending upon the cause of the lesions.

Medically Reviewed by a Doctor on 3/10/2017

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REFERENCE:

Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.

Causes of Bumps on Skin
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      • What is acne?
      • What causes acne?
      • What other skin conditions can mimic acne?
      • When should someone start acne treatment?
      • What can people do to get rid of their acne?
      • What are other things you can do for acne? Are there any home remedies for acne?
      • What is a good basic skin regimen?
      • How does a doctor treat acne? Is it possible to remove acne scars?
      • How would you summarize current-day acne treatment?
    • Actinic Keratosis Actinic keratoses are rough, scaly patches of skin that are considered precancerous and are due to sun exposure. Prevention is to...learn more »
      In This Article
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      • Actinic keratosis facts
      • What is an actinic keratosis? What causes actinic keratoses?
      • What are symptoms and signs of an actinic keratosis?
      • Who is at risk for actinic keratoses?
      • Where on the body do actinic keratoses typically occur?
      • What is the significance of an actinic keratosis?
      • What specialists diagnose actinic keratoses?
      • What is the treatment for an actinic keratosis?
      • Are there home remedies for actinic keratoses?
      • Is it possible to prevent actinic keratoses?
      • What is the prognosis of an actinic keratosis?
    • Anthrax Anthrax is a deadly infectious disease that may be transmitted to humans by infected animals or by biological warfare. There are...learn more »
      In This Article
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      • Anthrax facts
      • What is anthrax? Is anthrax contagious?
      • What causes anthrax?
      • How is anthrax contracted?
      • How common is anthrax? What are risk factors for anthrax infection?
      • How long is the incubation period with anthrax?
      • What kinds of diseases does anthrax cause? What are the signs and symptoms of anthrax infections?
      • What specialists treat anthrax?
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      • What is the prognosis for anthrax infections?
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      In This Article
      Atopic Dermatitis Article
      • Atopic dermatitis facts
      • What is atopic dermatitis?
      • Atopic dermatitis vs. eczema
      • How common is atopic dermatitis?
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      • What are atopic dermatitis symptoms and signs?
      • Can atopic dermatitis affect the face?
      • What are the stages of atopic dermatitis?
      • What specialists treat atopic dermatitis?
      • How do physicians diagnose atopic dermatitis?
      • How can people prevent and avoid aggravating factors for atopic dermatitis?
      • What are skin irritants in patients with atopic dermatitis?
      • Are food allergies important in atopic dermatitis?
      • What are aeroallergens?
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      • What is the treatment for atopic dermatitis?
      • What is the prognosis of atopic dermatitis?
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      In This Article
      Birthmark Article
      • Birthmark facts
      • What is a birthmark?
      • What are the different types of birthmarks?
      • What are the characteristics of pigmented birthmarks?
      • What are the characteristics of vascular birthmarks?
      • What causes birthmarks?
      • Are any symptoms and signs associated with birthmarks?
      • What disorders are associated with birthmarks?
      • Can skin damage during delivery produce a birthmark?
      • Is it possible to remove or fade birthmarks?
      • Does insurance cover the cost of birthmark removal?
      • What is the treatment for birthmarks?
      • What is the prognosis of birthmarks?
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      In This Article
      Bug Bites and Stings Article
      • Bug bites and stings facts*
      • Bug bites and stings introduction
      • What can I do to keep insects away?
      • What's the proper way to use insect repellent?
      • What's the best way to remove a bee stinger?
      • What should I do if I find a tick on me or my child?
      • What can be done for itching and pain from bites and stings?
      • When is medical attention needed?
      • Where can I find more information on bug bites and stings?
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    • Chickenpox (Varicella) Chickenpox (chicken pox) is a contagious childhood disease caused by the varicella-zoster virus. Symptoms have an incubation...learn more »
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      • Chickenpox facts
      • What is chickenpox? What causes chickenpox?
      • What are risk factors for chickenpox?
      • How does chickenpox spread? What is the contagious period for chickenpox?
      • What are chickenpox symptoms and signs? How long does chickenpox last?
      • What does chickenpox look like?
      • What types of specialists treat chickenpox?
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      In This Article
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      • Contact dermatitis facts
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      • What causes contact dermatitis?
      • What are risk factors for contact dermatitis?
      • What are contact dermatitis symptoms and signs?
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      • What is the treatment for contact dermatitis?
      • What is the prognosis of contact dermatitis?
      • Can contact dermatitis be prevented?
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    • Cyst Cysts are sac-like structures that may be filled with gas, liquid, or solid materials. Cysts may produce symptoms and signs...learn more »
      In This Article
      Cyst Article
      • Cyst facts
      • What is a cyst?
      • What are the different types of cysts?
      • What causes a cyst?
      • What are risk factors for a cyst?
      • What are cyst symptoms and signs?
      • What types of doctors treat cysts?
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      • What is the treatment for a cyst?
      • What are home remedies for cysts?
      • What is the prognosis of a cyst?
      • Is it possible to prevent a cyst?
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      In This Article
      Erythema Nodosum Article
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      • What else could an ingrown hair look like?
      • Is it possible to prevent ingrown hairs?
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      In This Article
      Insect Sting Allergies Article
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      • What are stinging insects?
      • What types of insect sting reactions occur?
      • What are signs and symptoms of insect sting allergies?
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      • What can I do about becoming immune to insect allergy?
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      In This Article
      Jock Itch Article
      • Jock itch (tinea cruris) facts
      • What is jock itch? What does jock itch look like?
      • What causes jock itch?
      • What are risk factors for jock itch?
      • What are jock itch symptoms and signs?
      • Does jock itch affect the entire body?
      • Which health care professionals diagnose and treat jock itch?
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      • What is the treatment for jock itch?
      • What home remedy can I use for jock itch?
      • What holistic jock itch treatments are available?
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      • What is the best drug for jock itch?
      • Why is my groin still discolored?
      • What are possible complications of jock itch?
      • When should someone call a doctor about jock itch?
      • What is the prognosis with jock itch?
      • Is it possible to prevent jock itch?
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      In This Article
      Keloid Article
      • What is a keloid?
      • What is the cause of keloids?
      • What are keloid risk factors?
      • In which area of the body are keloids most likely to appear?
      • What is the difference between a keloid and a hypertrophic scar?
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      • Is keloid removal necessary?
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      • What types of doctors diagnose and treat keloids?
      • Are there home remedies for keloids?
      • What are the treatments for keloids?
      • Is keloid prevention possible?
      • What is the prognosis for keloids?
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      In This Article
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      • Keratosis pilaris (KP) facts
      • What is keratosis pilaris?
      • Who gets keratosis pilaris?
      • Does keratosis pilaris affect the entire body?
      • What causes keratosis pilaris?
      • What are the signs and symptoms of keratosis pilaris?
      • What types of doctors treat keratosis pilaris?
      • How do doctors diagnose keratosis pilaris?
      • Does diet have anything to do with keratosis pilaris?
      • Is keratosis pilaris curable?
      • Is keratosis pilaris contagious?
      • What conditions mimic keratosis pilaris?
      • Are there home remedies for keratosis pilaris?
      • What is the treatment for keratosis pilaris?
      • What are possible complications of keratosis pilaris?
      • What is the prognosis of patients with keratosis pilaris?
    • Lichen Planus Lichen planus is a common skin disease that features small, itchy pink or purple spots on the arms or legs. the abnormal areas on...learn more »
      In This Article
      Lichen Planus Article
      • Lichen planus facts
      • What is lichen planus?
      • What are causes and risk factors for lichen planus?
      • How is the rash of lichen planus different from that of most other common rashes?
      • What are lichen planus symptoms and signs?
      • What does lichen planus look like?
      • What physicians diagnose and treat lichen planus?
      • How is lichen planus diagnosed?
      • Are there home remedies for lichen planus?
      • What is the treatment for lichen planus?
      • What is the long-term prognosis of lichen planus??
      • Is it possible to prevent lichen planus?
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      In This Article
      Melanoma Article
      • Melanoma facts
      • What is melanoma?
      • What does melanoma look like? What are melanoma symptoms and signs?
      • What if the skin changes are rapid or dramatic?
      • What are the causes and risk factors for melanoma?
      • How can people estimate their level of risk for melanoma?
      • What are the types of melanoma?
      • What tests do health-care professionals use to diagnose melanoma?
      • What is the treatment for melanoma?
      • How do doctors determine the staging and prognosis (outlook) of a melanoma?
      • What is recurrent melanoma?
      • What is metastatic melanoma?
      • What are the signs of symptoms of metastatic melanoma?
      • What are the treatments for metastatic melanoma?
      • What are the survival rates for metastatic melanoma?
      • What methods are available to help prevent melanoma?
      • What research is being done on melanoma?
      • Where can people get more information about melanoma?
    • Melanoma Second Source article from Government...learn more »
    • Moles Moles are small skin growths that may appear flat or raised and are often tan, brown, black, reddish brown, or skin colored. They...learn more »
      In This Article
      Moles Article
      • Moles facts
      • What are moles?
      • What causes moles, and what are risk factors for developing moles?
      • What types of moles are there?
      • What are liver spots or age spots?
      • What are seborrheic keratoses?
      • Who is more prone to getting moles?
      • Does having more moles increase one's chance of getting melanoma?
      • Do moles ever disappear spontaneously?
      • Which skin cancers look like moles?
      • How can moles be prevented?
      • How can moles be treated? What are different types of mole removal?
      • Is there a blood test or X-ray to diagnose moles?
    • Molluscum Contagiosum Molluscum contagiosum is a skin disease that causes pink painless bumps on the skin. It typically resolves in six to 12 months....learn more »
      In This Article
      Molluscum Contagiosum Article
      • Molluscum contagiosum facts
      • What is molluscum contagiosum?
      • Is molluscum contagiosum contagious?
      • What is the incubation period for molluscum contagiosum?
      • How long does the infection with molluscum contagiosum last? When does a person become noncontagious?
      • What causes molluscum contagiosum?
      • What are risk factors for molluscum contagiosum?
      • What are molluscum contagiosum symptoms and signs?
      • How do physicians diagnose molluscum contagiosum?
      • What is the treatment for molluscum contagiosum?
      • What type of doctors treat molluscum contagiosum?
      • Are there any home remedies for molluscum contagiosum?
      • What is the prognosis of molluscum contagiosum?
      • Is it possible to prevent molluscum contagiosum?
    • MRSA MRSA (methicillin-resistant Staphylococcus aureus) bacteria causes skin infections with the following signs and symptoms:...learn more »
    • Mycobacterium Marinum Mycobacterium marinum (M. marinum) is bacteria found in fresh and saltwater that can infect the skin through cuts or scrapes,...learn more »
      In This Article
      Mycobacterium Marinum Article
      • What is Mycobacterium marinum?
      • What are other names for Mycobacterium marinum infections?
      • How common is Mycobacterium marinum?
      • How does a person get infected with Mycobacterium marinum?
      • Are Mycobacterium marinum infections contagious?
      • Who is at risk for Mycobacterium marinum infection?
      • What are the symptoms of Mycobacterium marinum infection?
      • What specialists treat Mycobacterium marinum infections?
      • What tests are available to diagnose a Mycobacterium marinum infection?
      • Do fish get infected with Mycobacterium marinum?
      • What is the treatment for a Mycobacterium marinum infection?
      • What is the prognosis for those infected with Mycobacterium marinum?
      • What are possible complications from Mycobacterium marinum?
      • What else could it be?
      • How can I prevent this infection?
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      In This Article
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      • Onchocerciasis facts
      • What is onchocerciasis?
      • What causes onchocerciasis?
      • What are risk factors for onchocerciasis?
      • Is onchocerciasis contagious?
      • What are onchocerciasis symptoms and signs?
      • Is there an incubation period for onchocerciasis?
      • What types of specialists treat onchocerciasis?
      • How do health-care professionals diagnose onchocerciasis?
      • What is the treatment for onchocerciasis?
      • Is it possible to prevent onchocerciasis?
      • What is the prognosis and possible complications of onchocerciasis?
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      In This Article
      Pimple vs. Cold Sore Article
      • Pimple vs. cold sore facts
      • What is a pimple?
      • What is a cold sore?
      • What are similarities and differences between pimples and cold sores?
      • What are causes and risk factors for pimples and cold sores?
      • What are the signs and symptoms of pimples and cold sores?
      • What tests do health care professionals use to diagnose pimples and cold sores?
      • What are treatments and medications for pimples and cold sores?
      • What is the prognosis of pimples and cold sores?
      • Is it possible to prevent pimples and cold sores?
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      In This Article
      Psoriasis Article
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      • What are psoriasis causes and risk factors?
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      • Can psoriasis affect only my nails?
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      • What injections or infusions are available for psoriasis?
      • Is there a psoriasis diet?
      • What about light therapy for psoriasis?
      • What is the long-term prognosis with psoriasis? What are complications of psoriasis?
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      • What does the future hold for psoriasis?
      • Is there a national psoriasis support group?
      • Where can people get more information on psoriasis?
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      In This Article
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      • What are complications of rheumatoid arthritis?
      • What are rheumatoid arthritis symptoms and signs?
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      • What are the stages of rheumatoid arthritis?
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      • Is there a cure for RA?
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      • What new information about RA has come from the 2015 national meeting of the American College of Rheumatology?
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      In This Article
      Sarcoidosis Article
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      • What is sarcoidosis?
      • What are causes and risk factors of sarcoidosis?
      • What are signs and symptoms of sarcoidosis?
      • Who gets sarcoidosis?
      • What do we know about sarcoidosis? Is sarcoidosis contagious or hereditary?
      • What are some things we don't know about sarcoidosis?
      • What types of doctors treat sarcoidosis?
      • What tests do health-care professionals use to diagnose sarcoidosis?
      • What do laboratory tests for sarcoidosis show?
      • What is the treatment for sarcoidosis?
      • What is the prognosis of sarcoidosis?
      • Is it possible to prevent sarcoidosis?
      • Where can a person find more information on sarcoidosis?
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      In This Article
      Scarlet Fever (Scarlatina) Article
      • Scarlet fever facts
      • What is scarlet fever?
      • What causes scarlet fever?
      • What is the incubation period for scarlet fever?
      • What are risk factors for scarlet fever?
      • What is the contagious period for scarlet fever?
      • What are scarlet fever symptoms and signs?
      • How do physicians diagnose scarlet fever?
      • What is the treatment for scarlet fever?
      • What are complications of scarlet fever?
      • What is the prognosis of scarlet fever? What are the long-term effects of scarlet fever?
      • Is it possible to prevent scarlet fever? Is there a scarlet fever vaccine?
    • Skin Cancer Skin cancers occur when skin cells undergo malignant transformations and grow into tumors. The most common types of skin cancer,...learn more »
      In This Article
      Skin Cancer Article
      • What is skin cancer?
      • What are the risk factors for skin cancer?
      • Is skin cancer hereditary?
      • What causes skin cancer?
      • What are the different types of skin cancer?
      • What are the signs and symptoms of skin cancer?
      • When is a mole dangerous or high-risk for becoming a skin cancer?
      • What are the most common sites where skin cancer develops?
      • How do physicians diagnose skin cancer?
      • What is the staging for skin cancer?
      • What is the treatment for skin cancer?
      • What kinds of doctors treat skin cancer?
      • What is the prognosis and survival rate for skin cancer?
      • Is it possible to prevent skin cancer?
      • Sunscreen use and vitamin D
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      In This Article
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      • What is sporotrichosis?
      • What are symptoms and signs of sporotrichosis?
      • Who gets sporotrichosis?
      • How can people prevent sporotrichosis?
      • What are sources of sporotrichosis?
      • What tests do health-care professionals use to diagnose sporotrichosis?
      • What is the treatment and prognosis of sporotrichosis?
      • Statistics
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      • What are anabolic steroids?
      • Why do people abuse anabolic steroids?
      • How do people abuse anabolic steroids?
      • Are anabolic steroids addictive? What are the symptoms and signs of anabolic steroid abuse?
      • What are the psychological and physical side effects of anabolic steroid abuse?
      • How are anabolic steroid abuse and addiction diagnosed?
      • What is the treatment for anabolic steroid abuse and addiction?
      • Is it possible to prevent anabolic steroid abuse and addiction?
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      In This Article
      Yaws Article
      • Yaws facts
      • What is yaws? What are symptoms of yaws?
      • What causes yaws?
      • What are risk factors for yaws?
      • How does yaws begin and spread?
      • Why is this disease called yaws?
      • What are developmental stages in the course of yaws?
      • What types of specialists treat yaws?
      • How do health-care professionals diagnose yaws?
      • What is the treatment for yaws?
      • Why is yaws a serious problem?
      • What is the prognosis of yaws?
      • Is it possible to prevent yaws?
Other Causes of Bumps on Skin
  • Dermatofibroma
  • Granuloma Annulare
  • Hemangioma
  • Hyperplasia
  • Infections/Abscesses
  • Intradermal Cyst
  • Keratoacanthoma
  • Lipoma
  • Metastatic Carcinoma
  • Neurofibromatosis
  • Polymorphic Light Eruption
  • Pyogenic Granuloma
  • Rheumatoid Nodules
  • Sebaceous (Epidermoid) Cysts
  • Sebaceous Gland
  • Seborrheic Keratosis
  • Soft Tissue Sarcomas
  • Splinters or Other Foreign Bodies
  • Xanthomas


Symptoms & Signs A-Z List



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