Constipation
Passing stool less often than usual or having hard stools that are difficult to pass.
Quick Summary
Fewer bowel movements, hard or lumpy stools, straining, feeling of incomplete emptying and bloating.
More fibre, fluids and activity; laxatives if needed.
Low-fibre diet, not drinking enough, inactivity, ignoring the urge, pregnancy and some medicines.
Overview
Constipation is very common and usually not serious. It often gets better with simple diet and lifestyle changes.
Long-lasting constipation or sudden changes in bowel habit in older adults should be checked by a doctor.
Symptoms
Infrequent stools
Fewer than three times a week.
Hard stools
Difficult or painful to pass.
Bloating
And tummy discomfort.
Warning signs
Blood in stool, weight loss or severe pain need checking.
Causes & Risk Factors
Biological Causes
Stool moves too slowly through the bowel, so more water is absorbed and it becomes hard.
Key Risk Factors
- Diet Low fibre and fluids.
- Inactivity Little exercise.
- Medicines Iron tablets, some painkillers, antacids and others.
Management & Treatment
01. Fibre and fluids
Fruit, vegetables, whole grains, pulses and plenty of water.
02. Routine
Go when you feel the urge; regular exercise.
03. Laxatives
Such as lactulose or bisacodyl, if diet changes aren't enough.
Frequently Asked Questions
How often should I pass stool?
Are laxatives safe?
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Constipation(opens in a new tab) · MedlinePlus, US National Library of Medicine
- Constipation(opens in a new tab) · NHS