Conditions list medically reviewed by George Krucik, MD, MBA
Strep throat is a bacterial infection that causes inflammation and pain in the throat. This common condition is caused by group A Streptococcus bacteria.
Tonsillitis can occur at any age and is a common childhood ailment. It is most often diagnosed in children from preschool age through their midteens.
Lymphangitis is an inflammation of the lymphatic system, which is part of your immune system. If left untreated, the condition can become serious.
Hodgkin's disease is a type of blood cancer. We'll explain its symptoms, staging, and how it's treated.
Leukemia is a cancer of the blood cells. Get the statistics on survival rates, find out the most common symptoms, diagnostic options, and treatments.
Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).
If left untreated, HIV can lead to AIDS. AIDS weakens your immune system to the point where it can no longer fight off disease and infection. Learn more.
Leukemia is a type of cancer that starts in the blood or blood-forming tissues. There are many different types of leukemia, and treatment is different for each one…
Acute HIV infection occurs soon after someone is infected with HIV. Learn about its symptoms, diagnosis, treatment, and prevention.
Systemic lupus erythematosus, the most common form of lupus, is a chronic autoimmune disease that can cause severe fatigue and joint pain. Learn more about it.
Learn about sarcoidosis and its causes, symptoms, diagnosis, treatment, and potential complications.
Learn about the causes and symptoms of the West Nile virus.
Rheumatoid arthritis is an autoimmune disease. It causes joint problems. In autoimmune diseases, the immune system mistakes the body's own cells for invaders.
Brucellosis is a disease caused by bacteria from the genus Brucella. Learn more about how this condition is spread, symptoms, and treatment.
ALL is a cancer in your blood and bone marrow that occurs when abnormal cells grow out of control. Read more about this disease in children and adults.
Chronic lymphocytic leukemia is a form of cancer that affects your lymphocytes, a type of white blood cell. Learn about symptoms and treatment.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.