Spasm and fibrosis of the sphincter ani due to reflex action.
D000224:Addison Disease / Q000150:complications*; D005921:Glomerulonephritis; D009393:Nephritis; D012018:Reflex; D012213:Rheumatic Fever / Q000628:therapy*; D013035:Spasm; D013386:Succinates; D019802:Succinic Acid / Q000628:therapy*
ADDISON'S DISEASE/complications and sequelae; NEPHRITIS/glomerular; RHEUMATIC FEVER/therapy; SPHINCTER MUSCLES/analysis; SUCCINATE/therapy