Kidney stones are created when certain substances in urine -- including calcium, oxalate, and sometimes uric acid -- crystallize. These minerals and salts form crystals, which can then join together and form a kidney stone.
Kidney stones usually form within the kidney, where urine collects before flowing into the ureter, the tube that leads to the bladder. Small kidney stones are able to pass out of the body in the urine -- and may go completely unnoticed by you. But larger stones can irritate...
Abdominal aortic aneurysm (AAA), which is potentially life-threatening. Pain from a
kidney stone is usually on the right or left side depending on which kidney is
affected. Pain from an aneurysm is located in the center of the abdomen
Pain from appendicitis is usually in the
lower right abdomen.
People with kidney stones are more likely to
move restlessly with their pain, while people with appendicitis are likely to
stay still and try not to move because moving causes more pain.
Cholecystitis, an inflammation of the
gallbladder. Pain is usually in the upper right
Diverticulitis, in which pouches
(diverticula) form in the wall of the large
intestine (colon) and become inflamed or infected.
Symptoms can include pain and fever.
Inflammatory bowel disease (IBD), an ongoing inflammation of the intestines. Belly pain
is a symptom.
Hernias, in which tissue from inside
the abdomen bulges out of the abdominal wall. Belly pain may be a
Cancer of the