Addison’s Disease Addison’s disease causes adrenal insufficiency linked to adrenal dysfunction, in which the adrenal glands do not produce enough hormones. It involves a deficit in cortisol and aldosterone, hormones secreted by these glands...

Ankylosing Spondylitis (AS) Ankylosing spondylitis is a painful, long-term disease that affects the spine, bones, muscles, and ligaments that connect bones. There is presence of joint pain and inflammation related to arthritis in this...

Spina Bifida Spina bifida is a malformation caused by the poor development of the spine and spinal cord in the uterus, leaving an opening in the spine. Learn about the four different types of...

Fragile X syndrome Fragile X syndrome is a genetic disease that most commonly causes intellectual disability, behavioral problems, and physical abnormalities. Symptoms vary widely from patient to patient. The syndrome is also referred to...

Hirschsprung disease is a congenital defect in the innervation of the distal intestine, usually limited to the rectum and colon, resulting in partial or total functional obstruction. The symptoms are severe constipation and abdominal...