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Most constipation lasts for just a few days. It rarely becomes serious. But occasionally constipation goes on and on. If this isn't treated properly, it can get worse.

Constipation that lasts a long time is sometimes called chronic constipation. The word "chronic" describes any medical condition that you have for a long time.

It's hard to say what will happen if you have constipation that lasts a long time. There haven't been many studies. Here's what we do know.

• Constipation can be uncomfortable, but it isn't usually serious. Having constipation doesn't mean that you will get bowel problems (such as bowel cancer) later on.
• Being constipated could mean you're more likely to have hemorrhoids, or weakness and inflammation in the wall of your bowels (diverticular disease).¹ But there isn't much evidence for this.
• Rarely, constipation that isn't treated may lead to large, hard stools that block your bowels. This is more likely to happen if you're older.¹ Your doctor will probably prescribe medications called laxatives to clear your bowels. As a last resort, you may need to go the hospital. Your doctor can clear your bowels with an enema (fluid passed into your rectum) or suppositories (medication placed into your rectum). But most people won't need this.

This information is for educational use only, and is not a substitute for prompt professional medical advice. Readers should always consult a physician or other professional for advice and treatment. ©BMJ Publishing Group Limited 2008. All rights reserved.