Today I attended a LLL meeting and a mother of twins (about 2 1/2 mo) and 9#+ each described an odd occurence. She says that about 2 wk ago, the female twin began to have tiny yellow "stones" in her stool. She says these are very hard and about 1/8" diameter, and are definitely made of b.m. The baby has no trouble passing these. She tried to relate it to something she had eaten, but could not. Also the other twin did not have any such "stones" in his stool. These are yellow and there are no other differences between their stools. Hey Lactnetters, got any ideas. Mom is not too concerned, but very curious. Thanks for your help. Michelle Scott, RD,MA,IBCLC working to network in the community as I serve as WIC BF Coordinator and Peer Counselor supervisor.