What is Constipation? A Simple Guide to Symptoms, Causes and When to Get Help
If you've typed "what is constipation" into Google, chances are you already suspect you have it — you're just not entirely sure, or you want to understand it properly rather than guess. Constipation is one of those things almost everyone assumes they understand until they actually look into it, and it turns out to be a bit more nuanced than "not going to the toilet enough."
Let's start with the basics.
What is constipation?
Constipation is a change in your normal bowel habits that makes it harder, less frequent, or less complete to pass stools. Most commonly, that means:
• Going to the toilet fewer than three times a week
• Straining to pass a stool
• Stools that are hard, lumpy, or difficult to pass
• Feeling like you haven't fully emptied your bowels, even after going
• Needing to use your fingers, or change position, to help things along
Here's the part that surprises a lot of people: constipation isn't just about frequency. You can go to the toilet every single day and still technically be constipated if you're straining, passing hard stools, or never feeling properly empty. Equally, going every other day isn't automatically a problem if everything else feels normal for you. What matters most is what's changed for your body, not a fixed number everyone's supposed to hit.
Common symptoms of constipation
Alongside the core signs above, constipation often comes with:
• Bloating or a feeling of fullness
• Abdominal discomfort or cramping
• A sense of pressure or heaviness in your lower abdomen
• Reduced appetite
• In some cases, lower back discomfort
Constipation can be occasional, a few uncomfortable days here and there, or it can become chronic, meaning it persists for weeks or months and starts to genuinely affect your day-to-day life.
What causes constipation?
This is where things get more interesting, because constipation is very rarely caused by just one thing. It's usually a combination of factors working together, which is part of why generic advice like "just eat more fibre" doesn't always fix it. Common contributors include:
Not drinking enough fluid. Dehydration is one of the most overlooked causes. Fibre without enough fluid can actually make constipation worse, not better.
Fibre — the wrong type, or too much too fast. Fibre isn't one single thing. Different types behave differently in the gut, and increasing intake too quickly, or relying heavily on one source, can backfire.
A disrupted bowel routine. Ignoring the urge to go, rushing, or simply not having a consistent time of day can train your body to send weaker signals over time.
Hormonal changes. Hormones influence how quickly food moves through your digestive system. This is a big factor for many women around perimenopause and menopause — in fact, around 40% of postmenopausal women experience constipation.
Not eating enough. Your digestive system needs regular nourishment to keep functioning well. Skipped meals, long-term dieting, or a very small appetite can all slow things down.
Stress and your nervous system. Your gut and brain are in constant communication. Stress and anxiety can genuinely slow digestion, even when nothing about your diet has changed.
Pelvic floor dysfunction. Sometimes the issue isn't food-related at all, it's about the coordination of the muscles involved in passing a stool.
Medication. This one's often missed. GLP-1 medications (like Wegovy or Mounjaro), PPIs (reflux medications such as omeprazole), iron supplements, certain antidepressants, and opioid-based painkillers can all list constipation as a side effect.
Is constipation serious?
Most of the time, no, it's uncomfortable and frustrating, but manageable once you understand what's driving it for you specifically. However, it's important to know when constipation could be a sign of something that needs medical attention.
Please see your GP promptly if you experience:
• Blood in your stools
• Unexplained weight loss
• Persistent or severe abdominal pain
• A sudden change in bowel habit lasting several weeks
• Iron deficiency anaemia
• Constipation alternating with persistent diarrhoea
• A strong family history of bowel cancer together with new bowel symptoms
If none of these apply to you, constipation is very often something you can meaningfully improve by understanding which of the common causes above actually applies to your situation.
Why "just eat more fibre" isn't the full answer
This is probably the single most common piece of advice given for constipation, and it's also the reason so many people feel stuck. Fibre matters, but it's only one piece of a much bigger picture. Hydration, routine, hormones, stress, medication and eating patterns all play a role too — and for a lot of women, more than one of these is happening at once.
That's really the whole point of investigating it properly rather than guessing. Constipation is rarely one single cause you can fix with one single change.
Where to start
If you recognise yourself in more than one of the causes above, that's actually the most common outcome — not the exception. Working out which combination of factors applies to you is far more useful than another round of "eat more fibre and drink more water."
I've put together a free, 5-minute self-check guide called The Constipation Detective, designed specifically to help you work through the most common causes — hydration, fibre, routine, hormones, stress, medication and more — with a simple first step for each one.
Download The Constipation Detective guide
It's a good starting point whether this is a new problem for you, or something you've been quietly dealing with for years without quite knowing why.