Most common cause of hematochezia in children is: (A) Rectal polyp, (B) Meckel's diveiculum, (C) Necrotizing enterocolitis, (D) Acute gastritis
Answer is B. Serious causes of hematochezia in the neonate include necrotizing enterocolitis and midgut volvulus. A wide variety of causes of hemorrhage occur as children grow older. Causes relatively unique to children are intussusception, Meckel's diveiculum, and juvenile polyps Ref Davidson edition23rd pg 809