Abdominal distension causes

Abdominal aneurysm, congestive heart failure, heart failure

Congenital hepatic porphyria, congenital megacolon, congenital short bowel, congenital tuberculosis, hirschsprung’s disease, Jirásek-Zuelzer-Wilson syndrome, meconium plug syndrome

Beractant, Caspofungin acetate, dexamethasone, febuxostat, Hydrocortisone, ibuprofen lysine, indinavir, pramipexole, rifaximin, atropine

Hypothyroidism, Ovarian hyperstimulation syndrome OHSS

Abdominal abscess, acute appendicitis, ascites, biliary Atresia, cirrhosis, colonic volvulus, constipation, diverticulitis, idiopathic sclerosing mesenteritis, ileus, large bowel obstruction, necrotizing enterocolitis, pancreatitis and complications (pseudocyst), peritoneal bleeding, peritonitis

Polycystic liver disease

Acanthocytosis

Blind loop syndrome, colonic pseudo-obstruction (Ogilvie’s Syndrome)

Helminthiasis, toxic megacolon

Acute intermittent porphyria, hepatorenal tyrosinemia, lactose intolerance, overeating

Ovarian cancer, pregnancy

Granulosa cell tumor of the ovary, leukemia, lymphoma

Nephrotic syndrome

Abdominal trauma with intra-abdominal bleeding

Air swallowing (nervous habit), functional gas/constipation, gas/bloat syndrome, obesity, umbilical hernia or ventral hernia