<s>[INST] My 3rd old has had a little big of blood after wiping, we were told to change his diet. More fibre etc, today him after he had a BM there was bright red blood & quite a bit... Really worried any advice?? We are making an appointment with his DR tomorrow.. [/INST] Hi, Welcome to Chat Doctor, The problem that your child is facing is not commonly seen in this age group. Bright red blood and increased quantity is not suggestive of infection alone, and I am thinking of a surgical cause a possibility. Most probably due to some injury at the exit point of the stools. You Need to consult doctor at the earliest, and you might need to meet a pediatric surgeon too. Wish your child a good health. Take care. </s>