Conditions list medically reviewed by George Krucik, MD, MBA
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.
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.
Lymphangitis is an inflammation of the lymphatic system, which is part of your immune system. If left untreated, the condition can become serious.
Infectious mononucleosis, or mono, refers to a group of symptoms usually caused by the Epstein-Barr virus (EBV).
Rheumatoid arthritis is an autoimmune disease. It causes joint problems. In autoimmune diseases, the immune system mistakes the body's own cells for invaders.
Acute HIV infection occurs soon after someone is infected with HIV. Learn about its symptoms, diagnosis, treatment, and prevention.
Dengue fever is a disease that affects much of the tropical region and is caused by one of four dengue viruses. A skin rash between two and five days after the initial…
Toxoplasmosis is an infection caused by a parasite. This parasite, called Toxoplasma gondii, can be found in cat feces and in undercooked meat.
German measles, also known as rubella, is a viral infection. Learn about German measles symptoms, causes, diagnosis, treatment, and prevention.
Adult-onset Still's disease is an inflammatory condition causing swelling in joints, tissues, organs, and lymph nodes. Read more on this rare disease.
Learn about the causes and symptoms of the West Nile virus.
The plague is a serious bacterial infection that can be deadly. It's caused by poor sanitation, overcrowding, and large rodent populations.
Brucellosis is a disease caused by bacteria from the genus Brucella. Learn more about how this condition is spread, symptoms, and treatment.
Weil's disease is a severe form of the bacterial infection leptospirosis. Learn how to lower your risk of getting this potentially life-threatening illness.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.