Ingrown Toenail
(Onychocryptosis)
Nili N. Alai, MD, FAAD
Dr. Alai is an actively practicing medical and surgical dermatologist in south Orange County, California. She has been a professor of dermatology and family medicine at the University of California, Irvine since 2000. She is U.S. board-certified in dermatology, a 10-year-certified fellow of the American Academy of Dermatology, and Fellow of the American Society of Mohs Surgery.
William C. Shiel Jr., MD, FACP, FACR
Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.
- What are ingrown toenails? What are the symptoms?
- What causes ingrown toenails?
- Are some people more prone to ingrown toenails?
- Which nails are most commonly affected?
- What causes infections in ingrown toenails?
- What are possible complications of ingrown toenails?
- How do I treat an ingrown toenail at home?
- When should I see a physician?
- What kind of doctor treats ingrown toenails?
- How are ingrown toenails treated?
- What types of nail surgery are used for ingrown toenails?
- How can I prevent ingrown toenails from recurring?
- Ingrown Toenail Do's
- Ingrown Toenail Don'ts
- Ingrown Toenail At A Glance
- Patient Comments: Ingrown Toenail - Treatments
- Find a local Podiatrist in your town
What are ingrown toenails? What are the symptoms?
Ingrown toenails are a very common problem affecting primarily the great toenail. They are caused by sideways growth of the nail edge into the skin of the toe. The abnormal extension of the toenail pushes into the surrounding skin causing discomfort. Normal toenail growth should be vertical or outward toward the tip of the toe. The medical term for ingrown toenail is onychocryptosis.
Symptoms of ingrown toenails are sore, often painful, nail folds with various degrees of redness, swelling, and sometimes clear or yellow drainage. Frequently, ingrown toenails resolve without medical treatment. Complicated cases may require treatment by a physician.
What causes ingrown toenails?
The sideways growing portion of nail acts like a foreign body and pokes into or pinches off a small piece of skin at the outer edge of the toe. This may cause a break in the skin, causing inflammation and possibly infection. The inflammation often causes more thickening of the nail skin fold, further exacerbating the problem. The protruding piece of nail keeps pushing into the skin, causing further injury and pain.
Are some people more prone to ingrown toenails?
Some people are simply more prone to ingrown toenails. Some risk factors include
- athletic adolescents and children,
- tight or narrow shoes (poorly fitted shoes),
- repeat injury or trauma to feet,
- poor foot hygiene,
- poor posture and gait,
- congenital foot deformity,
- congenital toenail malformation,
- very long toes,
- naturally short nails,
- obesity,
- diabetes,
- toenail infections,
- fungal nail disease,
- prior nail surgery,
- abnormal nail growths,
- arthritis, and
- excessive foot sweating.
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