Unusually delayed bowel 4-7 days since birth, although maconium passed in 24 hrs after birth. Very small sticky stool passes when trying hard. Vomiting, unable to eat. Barium Test showed results similar to Hirschcprung disease. Biopsy not done because doctor performed another test "Anal Manometry" and thinking that it's not Hirschsprung disease. Doc suggested to make the child drink full packet of peglec powder with 2 litre water in same day and do not eat anything that day. And then continue other medicines like MuOut for a month. Although child is not drinking at all more than a glass of peglec. I am not sure how to proceed. Is there any other method of confirming other than biopsy that its not Hirschsprung disease? Is there any other possibility that might be causing this condition. Doctors misdiagnose it as constipation. In the past taking a laxative helps in bowel movement but child was never able to pass stool normally without laxative. Request all doctors to suggest and help.