my baby boy is 6 mnth now..at 3mnth I hav started formula n only one tym per day..but at 5 mnth I hav seen little blood in his poop..den I go to doct n he said to do ultrasound..but their is nothing wrong in his stomach..ultrasound report is all normal..den after 1mnth again I hav seen some blood in his stool..n doct said it's becoz of d formula..milk protien make allergie..n gave me similac all comfort..can any one suggest me something why it is happening..I need a 2nd doct opinion..plz help..