Im sorry translator but if I could correct you... actually the disease is not called "intestinal hyperplasia" but "intussuception/invagination" where some of bowel segment invaginate into adjacent bowel segment, mostly happen in baby 7 months until 2 years... the symptoms is colic pain, red jelly stool and 'sausage' sign (the invaginated bowel palpated) in right side of belly (yes it's quite funny but true)
Thank you