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Gastroesophageal reflux disease, or GERD, occurs when stomach acid frequently flows back into your esophagus, which is the tube connecting your mouth and stomach. This backwash, called acid reflux, ca...

Gastroparesis is a condition that affects the normal spontaneous movement of the muscles (motility) in your stomach. Ordinarily, strong muscular contractions propel food through your digestive tract. ...

Your gallbladder is a small, pear-shaped organ on the right side of your abdomen, just beneath your liver. The gallbladder holds a digestive fluid called bile that's released into your small intestin...

Fecal incontinence is the inability to control bowel movements, causing stool (feces) to leak unexpectedly from the rectum. Also called bowel incontinence, fecal incontinence ranges from an occasional...

Kidney cancer is cancer that begins in the kidneys. Your kidneys are two bean-shaped organs, each about the size of your fist. They're behind your abdominal organs, with one kidney on each side of you...

Celiac disease, also called sprue, is an immune reaction to eating gluten — a protein found in wheat, barley and rye. If you have celiac disease, eating gluten triggers an immune response in you...

Nonalcoholic fatty liver disease (NAFLD) is a term for a range of liver conditions. As the name implies, the main characteristic of NAFLD is too much fat stored in liver cells. Some individuals with N...

A urinary tract infection is an infection in any part of your urinary system, including your kidneys, ureters, bladder and urethra. Most infections involve the lower urinary tract — the bladder ...

Bladder cancer is a common type of cancer that begins in the cells of the bladder. The bladder is a hollow muscular organ in your lower abdomen that stores urine. Bladder cancer most often begins in t...

Seeing blood in your urine can be alarming. While in many instances the cause is harmless, blood in urine (hematuria) can indicate a serious disorder or cancer of the urinary tract. Blood you can see ...