This situation was described to me this evening by another LC, Judy Oakney, a hospital-based RN of many years' experience. Baby girl is now 4 mos old. Normal vag birth, has always nursed well, is gaining & growing, has general good disposition, no jaundice, normal yellow stools. At 2 mos was treated w/antibiotics for bronchitis. At 3 1/2 mos, mom saw little specks of bright blood in baby's stools. Ped looked at baby's bottom (no other exam), said baby is allergic to mom's milk & sent them to a Ped G.I. The GI agreed, said it was 'allergy to protein'. GI also noted anal fissures on baby but said that was NOT the cause of the blood in stools & took a stool culture. GI also took mom off all dairy, citrus, beef, fish, peanuts, & chocolate (but not mom's 3 cups of coffee/day). Mom can eat chicken, pork, veggies, & non-citrus fruits. After 2 wks on that diet, stools still yellow but are 2/day instead of 4/day, & very 'liquidy'. Baby is now fussy at breast but still growing. Stool culture came back & mom reports GI said the 'good bacteria had gone bad' & gave a new antibiotic prescription for baby. Mom says there is more blood now, after 2 wks of diet, but GI had said he expected it to get worse before it got better. GI also said he would put baby on Nutramagen if baby didn't improve after 3 wks of Mom's new diet. Mom said she made no changes in her routine or diet prior to the appearance of the blood & fissures. There are no known food allergies in family per mom's queries of relatives. Judy has suggested Mom get 2nd med opinion. Mom wants to continue BF & is afraid to call GI w/current status. She knows he will say to use Nutramagen. Also today, baby threw up after a feeding; it was yellow like the stools, no blood, no mucous. Mom thought it was bile, but Judy told her since stomach was full from feed, not empty, it wasn't likely to be bile. Mom works part-time but takes baby with her & has given only a couple of bottles of EBM, no abm. No other info on poss inside-out cause of anal fissures. No info to suggest an outside-in cause of fissures either. Any suggestions, observations, details left out? TIA for your help. Phyllis Adamson, BA, IBCLC Phoenix, AZ [log in to unmask]