Constipation and bowel health explained

What counts as constipation

There is no single "normal" for how often people open their bowels — anything from three times a day to three times a week can be healthy. Constipation is really about a change from your own normal pattern, or stools that are hard, lumpy and hard to pass, often with straining or a feeling of not fully emptying. It can also cause tummy ache, bloating and discomfort. In some cases, very hard stool builds up and looser stool leaks around it, which can be mistaken for diarrhoea, especially in older people. Recognising your usual pattern helps you notice when something has genuinely changed, which is the first step in knowing whether simple self-help is enough or whether to seek advice.

Why constipation happens

Most constipation is down to everyday factors rather than disease. Not eating enough fibre, not drinking enough fluid, and not moving around much all slow the bowel down. Ignoring the urge to go, changes in routine such as travel, and stress can contribute too. Pregnancy commonly causes constipation, as do many medicines, including some strong painkillers (especially opioids), iron tablets and certain others. Some medical conditions, such as an underactive thyroid or diabetes, and problems with the nerves or muscles of the bowel can also be involved. In older adults, reduced mobility and multiple medicines make it more likely. Understanding the cause matters, because the most effective treatment is usually to tackle whatever is driving it.

Self-help that works

For most people, simple changes make a real difference. Gradually eating more fibre — from wholegrains, fruit, vegetables, beans and pulses — adds bulk and softens stool, but it works best alongside drinking plenty of fluid, mainly water. Regular physical activity, even walking, helps keep the bowel moving. It also helps to respond promptly to the urge to go rather than holding on, and to allow unhurried time on the toilet; resting your feet on a low stool so your knees are above your hips can make passing stool easier. Cutting back on alcohol and caffeine, which can dehydrate you, may help too. These measures take a little time to work, so consistency over days and weeks matters more than a quick fix.

When medicines are needed

If lifestyle changes are not enough, laxatives can help and many are available from pharmacies. They work in different ways: bulk-forming laxatives add fibre-like bulk, osmotic laxatives draw water into the bowel to soften stool, and stimulant laxatives encourage the bowel muscles to move things along. A pharmacist can advise which type suits you and how to use it. Laxatives are usually meant for short-term use, though some people, such as those on regular strong painkillers, may need them longer under guidance. It is important to keep drinking fluids when using them. If you are relying on laxatives regularly, or they are not working, that is a reason to see your GP rather than simply increasing the dose yourself.

Warning signs to see a doctor

Most constipation is harmless, but certain features need medical assessment. See your GP if constipation is persistent and not improving with self-help, if it is a new and lasting change in your normal bowel habit (especially over the age of 50), or if it comes with unexplained weight loss, tiredness, or a lump in your tummy. Blood in your stool, or bleeding from the back passage, should always be checked, as should ongoing tummy pain. Constipation with severe pain, vomiting and a swollen, tender tummy needs urgent assessment, as it can rarely signal a blockage. This article is educational only and cannot diagnose you — if you are severely unwell, seek urgent NHS advice or call 999 in an emergency.