Hard, compacted stools that are difficult or painful to pass.
No bowel movements in three days for adults, four days for children.
Stomachaches that are relieved by bowl movements
Bloody stools
Leaks of wet, almost diarrhea-like stool between regular bowel movements
Call Your Doctor If:
Constipation is associated with fever and lower abdominal pain, and your stools are thin or loose; these symptoms may be an indication of diverticulitis.
You have blood in your stools; this may be from a fissure or hemorrhoid but could also be a sign of colorectal cancer; changes in your bowel movement pattern, such as passing pencil-thin stools, may also signal colorectal cancer.
Your constipation develops after you start a new prescription drug or take vitamin or mineral supplements; you may need to discontinue the medication or change dosage.
You or your child has been constipated for two to three weeks, with recurrent abdominal pain; this could be a sign of lead poisoning or other serious ailment.
You are elderly or disabled and have been constipated for a week or more; you may have an impacted stool.
You are losing weight even though you aren't dieting.
You have severe pain with bowel movements.
Medically updated by Tracy Shuman, MD, August 2005.
SOURCES: Family Practice Notebook. The Mayo Clinic.