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Pharyngitis and tonsillitis are infections that cause inflammation. If the tonsils are mainly affected, it is called tonsillitis. If the throat is mainly affected, it is called pharyngitis. These infections are spread by close contact with others. Here's what you need to know.

Detailed anatomical description of the spine, shoulder, and pelvis, including full-color, labeled illustrations.

Chronic pain is pain that lasts for more than three months. Learn more about symptoms, diagnosis, and treatments.

A dislocated shoulder means the upper arm bone (humerus) has moved out of the shoulder joint. It can cause pain, swelling, numbness and trouble moving the shoulder.

Cholera is an infectious disease caused by bacteria.

Cryptosporidiosis is an infection that causes diarrhea. It is sometimes called crypto. It is caused by a parasite found in stool.

Shin splints refers to pain and tenderness along or just behind the large bone in the lower leg (the tibia).

Detailed information on chronic venous insufficiency, including causes, symptoms, diagnosis, and treatment.

Diagnosing arthritis and other rheumatic diseases is often difficult, as many symptoms are similar among the different diseases.