Brachial neuritis is nerve damage that affects the chest, shoulder, arm, and hand. It causes pain, weakness and lack of muscle control and lack of feeling in the shoulder or arm.

An epidural abscess is an infection that forms in the space between your skull bones and your brain lining (intracranial epidural abscess).

Bacterial meningitis is an infection of the membranes that protect the spinal cord and brain. Learn more about this condition, including cause, symptoms, diagnosis, and treatment.

Zika is a virus passed on through the bite of a mosquito. It may also be spread through sexual contact and blood transfusions.

Transverse myelitis is inflammation and scarring of the spinal cord that causes pain and weakness in the body.

Borderline personality disorder (BPD) is a kind of mental health problem. People with BPD have unstable moods and can act recklessly. They also have a hard time managing their emotions. Read on to learn more.

A meningioma is a tumor that grows in the meninges, the layers of tissues that cover the brain and spinal cord.

Glycogen storage disease (GSD) is a rare condition that changes the way the body uses and stores glycogen, a form of sugar or glucose.

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. The strength and flexibility of this tendon are important for jumping, running, and walking.