My son had a pretty solid bm tonight, after a couple days without, and there was blood in it. what could be causing this? should i take him to the er?

Constipation: Constipation is fairly common in children. In younger children, it is usually due to low fiber diet and.Or poor liquid intake. The most common cause for blood to appear on hard stool is latter causing a tiny anal tear. The treatment is to reduce the frequency of constipation - more fiber and increased water intake. This allows tear to heal. If you continue to see blood - see your doctor.

He's constipated!: Constipation is usually from not enough water, not enough fiber, or too much of something constipating (like milk and cheese). The blood is likely an anal fissure, which is a small crack in the skin of the anus due to the trauma of passing a large, hard stool. If he's got blood saturating his underwear, go to the er. Otherwise, discuss your child's diet with your doctor to find the cause.