Diseases and Conditions

Anemia is a condition in which the body does not have enough healthy red blood cells. Red blood cells provide oxygen to body tissues. Hemoglobin is the oxygen-carrying protein inside red blood cells. It gives red blood cells their red color. Peopl...

Gout is a form of acute arthritis that causes severe pain and swelling in the joints. It most commonly affects the big toe, but may also affect the heel, ankle, hand, wrist, or elbow. It affects the spine often enough to be a factor in lower back ...

A headache is pain or discomfort in the head, scalp, or neck. Serious causes of headaches are extremely rare. Most people with headaches can feel much better by making lifestyle changes, learning ways to relax, and occasionally by taking medicatio...

Hives are raised, often itchy, red welts on the surface of the skin. They are usually an allergic reaction to food or medicine.

Kidney infection is a general term used to describe infection of the kidney by bacteria, fungi, or viruses. The infecting microbe may have invaded the kidney from the urinary bladder or from the bloodstream. The disease is characterized by fever, ...

Oral cancer is cancer of the mouth.

Shingles (herpes zoster) is a painful, blistering skin rash due to the varicella-zoster virus, the virus that causes chickenpox. See also: Ramsay Hunt syndrome

Sexually transmitted diseases (STDs) are caused by a group of infectious microorganisms that are transmitted mainly through sexual activity. These agents represent a costly, burdensome global public health problem. STDs can cause harmful, often ir...

Vertigo is a sensation of motion or spinning that is often described as dizziness. Vertigo is not the same as light-headedness. People with vertigo feel as though they are actually spinning or moving, or that the world is spinning around them.