Tumors on your pancreas, called insulinomas, make extra insulin, more than your body can use. This causes blood sugar levels to drop too low. This can cause symptoms of low blood sugar or hypoglycemia.

Achilles tendon injuries affect the Achilles tendon, a fibrous band of tissue that links the muscles in your calf to your heel. Learn more about these injuries, including what causes it, who is at risk, what the symptoms are, and how it's diagnosed and treated.

Oral hairy leukoplakia is a condition triggered by the Epstein-Barr virus. The condition causes white patches on your tongue. It happens most often in people with weak immune systems.

If you have acquired hemophagocytic lymphohistiocytosis (HLH), your body's immune system does not work normally. Here's what you need to know.

Gaucher disease is a rare genetic disorder passed down from parents to children (inherited). When you have Gaucher disease, you are missing an enzyme that breaks down fatty substances called lipids. Lipids start to build up in certain organs, such as your spleen and liver.

Your pancreas plays a major role in digestion. It is located inside your abdomen, just behind your stomach, and it is about the size of your hand. Read on to learn about the enzymes and hormones that the pancreas produces and about common problems that affect the pancreas.

Mesenteric ischemia is decreased or blocked blood flow to your intestine.

The large intestine is one of the many important parts of your digestive tract. This is a series of organs that begins with your mouth and ends with your anus, the opening of your rectum.

A traumatic brain injury is caused by a blow to or penetration of the head resulting in brain damage. Read on to learn about diagnosis, symptoms, and treatment.

Your esophagus has 1 main purpose: to move food from your throat to your stomach. Here's how it works.