Myself Dr Josh- A Board Certified Physician and I’m happy to help with your question today.
Well, the most common cause for such symptoms is- Anal Fissure.
Anal fissures usually are caused by passage of a large or hard stool. This is the cause in 90% of children with blood after passing stools.
Such hard stool could occur with Constipation, causing a small tear in anal region.
Fissures cause bleeding when a child has a bowel movement, particularly if he has a hard bowel movement or passes a large amount of stool.
This is not a serious problem and all you need to do is manage the constipation.
He should be seen by doctor, so that clinical examination is done, and they would advised measures to control constipation.
Please take him to doctor and get it clinically evaluated.
Hope this helped
If you have any further question then you can ask me.
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