Connective tissue diseases are autoimmune disorders that take different forms. Tests to assist in diagnosis include physical exam, labs, and imaging.

Gas is normal and everyone has it, but some people think they have too much. Excessive gas and a lot of pain might be a symptom of another condition.

Gastrointestinal motility disorders interfere with the speed of digestion. Learn about the causes and risk factors for gastric motility disorders.

The ANA blood test is used to detect the presence of antinuclear antibodies which may be associated with specific autoimmune diseases.

Graft-versus-host disease (GVHD) can sometimes be diagnosed on symptoms in people with a stem cell transplant or require confirmatory lab tests or biopsy.

Graft-versus-host disease is a complication of a stem cell or bone marrow transplant in which donated cells launch an immune attack against normal tissues.

Symptoms of autoimmune diseases can include fatigue, aching joints and muscles, inflammation, hair loss, and rashes. Learn more about autoimmunity.

A rheumatologist is a medical doctor who specializes in arthritis and other diseases that affect the joints, muscles, and bones.

Polymyositis is a rare inflammatory disease of muscle. Muscle weakness and tenderness are primary characteristics of polymyositis.

In most people, GERD is caused by a relaxation of the lower esophageal sphincter (LES). Other causes include obesity, smoking, medications, and asthma.