What is hemophilia and what causes hemophilia? Learn the definitions of hemophilia A and hemophilia B, part of a group of genetic bleeding disorders. Discover the symptoms of hemophilia and the treatments available to hemophiliacs. See how hemophilia is inherited, and whether hemophilia is dominant or recessive.

Rheumatoid factor (RF) is a blood test that helps to diagnose rheumatoid arthritis, lupus, and sarcoidosis. Elevated test results, or high levels, indicate severe disease. Learn about the normal range for rheumatoid factor.

Rheumatoid arthritis (RA) is an autoimmune disease that causes chronic joint inflammation. Learn about stages, started ages, early signs, treatments, diagnosis, types, causes, medications, diet, and exercise.

Read about cancer risk factors and causes, such as age, family history, diet, alcohol and tobacco use, and exposure to sunlight, radiation, chemicals, viruses, and bacteria.

Heart disease in women has somewhat different risk factors, symptoms, signs, and treatment compared to heart disease in men. Many women and health care professionals are unaware of the differences in heart disease between women and men. Heart disease in women can be prevented and reversed with lifestyle changes.

Internal bleeding is a serious consequence of trauma and can be life-threatening, requiring immediate medical attention. Learn about signs, causes, and treatment.

Phlebitis and thrombophlebitis are an inflammation of a vein, and blood clots that cause the inflammation. Signs and symptoms of phlebitis are pain, tenderness, redness, and a bulging vein are common symptoms. Causes of phlebitis and thrombophlebitis include sitting for prolonged periods and varicose veins. Treatment and recovery for phlebitis and thrombophlebitis depends on the cause. Complications of phlebitis and thrombophlebitis include DVT and pulmonary embolism.

Pernicious anemia is a type of blood disorder caused when the body does not make enough red blood cells due to lack of vitamin B12. Pernicious anemia causes a variety of symptoms and signs, for example, feelings of weakness, numbness, tingling, and personality changes. Treatment of pernicious anemia is an injection of vitamin B12 for life. Untreated pernicious anemia can be permanent and cause death.

Meningococcal Disease is a severe bacterial infection with symptoms including fever, headache, fatigue, and body aches. Read about contagious, vaccines, prevention, treatment, causes, diagnosis, and prognosis information.

Read about running tips, facts, history, techniques, health benefits, weight loss, injuries, shoes and clothing, training programs and schedules, and famous runners.

Pulmonary embolism is a blood clot in the lung that causes signs and symptoms of chest pain, cough, and shortness of breath. Learn about PE causes, treatment options, diagnosis, death, and survival rate.

Learn about thrombocytopenia, a decreased number of platelets in the blood. There are many causes of thrombocytopenia such as decreased platelet production, increased platelet destruction or consumption, or increased splenic sequestration.

Crohn's disease is an inflammatory bowel disease (IBD) that causes inflammation in the digestive tract. Crohn's disease symptoms and signs include abdominal pain, bloody diarrhea, and weight loss. There are a few types of Crohn's disease. Several Crohn's disease treatments exist, but there is no cure.

Felty's syndrome is a complication of rheumatoid arthritis. Read about the conditions of Felty's syndrome (rheumatoid arthritis, an enlarged spleen, an abnormally low white blood count), its symptoms, treatment, and complications.

Biological therapy is a treatment that uses the body's immune system to treat a disease and protect the body from some of the side effects of certain treatments. Read about different types of biological therapy and their side effects.

Common anxiety prescriptions are SSRIs, antidepressants, anti-anxiety medications, and beta-blockers. Learn how they work, types, side effects, drug interaction, and warnings.