Immunoglobulin A (IgA) is a blood protein that's part of your immune system. Your body makes IgA to help fight off sickness. Having an IgA deficiency means that you have low levels or no immunoglobulin A in your bloodstream.

Severe immune disorders may be obvious right after birth. Other immune disorders may cause only mild symptoms and may not be noticed until later in childhood or early adulthood.

Dermatomyositis is a rare disease that causes muscle inflammation and skin rash. It's one of a group of muscle diseases that cause muscle inflammation and swelling. It's different from other muscle diseases because it also causes skin problems.

Your medical team may advise 1 of several different types of surgery as part of your cancer treatment. These types include cryosurgery, laser surgery, microsurgery, and electrosurgery.

Radiculopathy, commonly called pinched nerve, often occurs in the low back.

Monoclonal gammopathies are conditions in which abnormal proteins are found in the blood.

Granulomatosis with Polyangiitis (GPA) is a condition of the immune system. It causes swelling and irritation in blood vessels and other tissues.

Scientists have found a way to use the body's immune system to help treat or defend against a number of health problems. This treatment is known as immunotherapy.

When your body is unable to remove waste in the normal way, you may need an ostomy. This is an opening that is created surgically somewhere on the body to help the body get rid of stool or urine.

Made up of bundles of nerves, the spinal cord carries signals from your body to your brain, and vice versa.