Chronic constipation is long-lasting difficulty passing stool or having bowel movements less often than usual. It may involve hard, dry stools, straining, pain, or feeling that the bowel has not emptied fully. Symptoms that continue for months can have several causes, including daily habits, medicines, or medical conditions. A healthcare professional can help identify possible causes and discuss suitable ways to manage it.
What makes constipation chronic?
Constipation is common and may happen temporarily after a change in diet, routine, activity, or medication. Chronic constipation refers to symptoms that persist over a longer period rather than resolving quickly. According to Mayo Clinic, chronic constipation is generally described as having two or more common constipation symptoms for three months or longer.
There is no requirement to have a bowel movement every day. Normal bowel habits differ between people, and frequency alone does not explain the full picture. Someone who regularly passes stool without difficulty may have a different pattern from someone who experiences persistent straining, hard stools, or a feeling of incomplete emptying.
What does chronic constipation feel like?
Long-lasting constipation can affect both the frequency of bowel movements and the effort needed to pass stool. Experiences may include:
- Having bowel movements less often than usual, sometimes fewer than three times a week.
- Passing hard, dry, or lumpy stools.
- Needing to strain or experiencing pain during a bowel movement.
- Feeling that stool remains in the rectum after going to the toilet.
- Feeling as though stool is blocked or difficult to pass.
- Experiencing abdominal discomfort, bloating, or a sense of fullness.
These are examples of symptoms that can occur with constipation, not a checklist for diagnosing yourself. Their importance depends on how long they have been present, how they differ from your usual bowel habits, and whether other symptoms accompany them.
What causes chronic constipation?
Chronic constipation can develop for more than one reason. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) explains that possible causes include slow movement of stool through the colon, difficulty emptying the bowel because of pelvic floor problems, certain medicines, and underlying medical conditions.
Everyday habits and changes in routine
- Low fiber intake: Eating too few fiber-rich foods, such as vegetables, fruits, beans, and whole grains, can contribute to constipation.
- Not drinking enough fluids: Inadequate fluid intake can make stools harder and more difficult to pass.
- Limited physical activity: Spending long periods sitting or being less active may contribute to changes in bowel habits.
- Ignoring the urge to go: Frequently delaying a bowel movement can make it harder to maintain a comfortable toilet routine.
- Changes in daily life: Travel, altered meal schedules, and changes in routine may affect bowel movements.
Medicines and supplements
Some medicines can contribute to persistent constipation. Examples include opioid pain medicines, iron supplements, certain antacids containing calcium or aluminum, some antidepressants, and medicines used to treat high blood pressure or neurological conditions. The effect depends on the particular medicine and the person taking it.
If constipation begins after starting a medicine or changing its dose, mention the timing to a healthcare professional. Do not stop a prescribed medicine or change its dose without checking with the prescriber.
Medical conditions that may contribute
Constipation can also be associated with conditions affecting the digestive system, nerves, hormones, or the muscles involved in emptying the bowel. Examples include diabetes, an underactive thyroid, irritable bowel syndrome, certain neurological conditions, and pelvic floor dysfunction. Pelvic floor dysfunction can make it difficult for the muscles to coordinate properly when passing stool.
Sometimes, no single cause can be identified. Persistent symptoms do not automatically mean that an underlying disease is present, but ongoing changes deserve attention when they interfere with daily life or do not improve.
How do doctors evaluate chronic constipation?
Healthcare professionals consider the pattern and duration of symptoms along with medical history, medication use, daily habits, and any other changes in health. The NIDDK's guidance on constipation diagnosis describes an evaluation that may include a physical examination and, when appropriate, medical tests to investigate possible causes.
During an appointment, you may be asked how often you have bowel movements, whether stools are hard or difficult to pass, when the problem began, and whether you feel fully emptied afterward. Information about diet, physical activity, supplements, prescribed medicines, previous digestive problems, and family medical history may also be relevant.
Not everyone needs extensive testing. Depending on the symptoms and examination findings, a clinician may recommend initial management or investigate specific concerns with blood tests, stool tests, or other procedures. Tests are selected according to the person's circumstances rather than performed routinely in every case.
How is chronic constipation managed?
Management depends on the likely cause, other health conditions, medicines being taken, and the effect of symptoms on everyday life. For some people, gradual changes to diet and toilet habits are helpful. The NHS guidance on constipation describes measures such as gradually increasing dietary fiber, drinking adequate fluids, staying active, allowing time for bowel movements, and avoiding unnecessary delays when the urge occurs.
Fiber should generally be increased gradually to allow the digestive system to adjust. People who have been advised to restrict fluids should follow their healthcare professional's guidance rather than increasing fluid intake without advice. Changes in routine may help, but persistent symptoms sometimes require additional treatment.
A healthcare professional may recommend a suitable laxative, prescribe medication, review medicines that could contribute to constipation, or arrange treatment directed at a bowel-emptying problem. People with pelvic floor coordination difficulties may benefit from specialized assessment and biofeedback therapy. Regular or prolonged laxative use should be discussed with a clinician or pharmacist so that the treatment is appropriate for the situation.
Can chronic constipation cause complications?
When constipation continues, repeatedly straining or passing hard stools can contribute to problems such as hemorrhoids and anal fissures, which are small tears in the tissue around the anus. In some cases, hard stool can build up and become difficult to pass, a problem known as fecal impaction.
Long-lasting constipation may also affect comfort, daily activities, and quality of life. Persistent symptoms that do not improve with appropriate measures should be evaluated rather than managed indefinitely without professional guidance.
When should you seek medical care?
Arrange a medical appointment if constipation keeps returning, lasts for several weeks, is becoming more difficult to manage, or interferes with normal activities. A recent change in bowel habits, blood in the stool, unexplained weight loss, persistent abdominal discomfort, or unusual tiredness also warrants medical assessment.
Seek urgent medical care if constipation occurs with constant or severe abdominal pain, vomiting, fever, or an inability to pass gas. These symptoms may indicate a problem that needs prompt evaluation, rather than uncomplicated constipation.
For children, constipation should be assessed using age-appropriate guidance because feeding patterns, bowel habits, and treatment recommendations differ from those for adults. Older adults may also need closer attention when bowel habits change, particularly if they take multiple medicines or have other health conditions.