My 4 years old daughter is constipated, has light red blood in her stool and abdominal pain before and after her bowel movements. what illnesses could this be ? she already taking a laxative regularly. we did ultrasound of her abdomen and is fine?

If the blood seems to be outside of the elimination, there may be an anal fissure. Monitor temperature and keep her well hydrated. A diet with five servings daily of vegetables and fruit, including prune juice may be helpful. Reduce intake of processed starchy and baked dessert items such as cake. Please follow up. Watch for signs of abdominal persistent pain and vomiting.