5 Common Mistakes That Can Prolong Constipation in Older Adults
5 Common Mistakes That Can Prolong Chronic Constipation in Older Adults
Constipation is a common digestive problem in older adults, but it should not be considered an “inevitable” consequence of aging. This condition is often associated with multiple factors, including diet, fluid intake, physical activity level, underlying medical conditions, and medications being used. Therefore, if constipation is only managed symptomatically without addressing related factors, it may recur, persist, or lead to fecal impaction.
1. What Is Chronic Constipation?
According to the 2025 guidelines of the World Gastroenterology Organisation (WGO) [1], chronic constipation is commonly characterized by fewer than three bowel movements per week, hard or lumpy stools, excessive straining, and a sensation of incomplete evacuation. However, bowel movement frequency is not the only criterion. A person who has a bowel movement every day but has very hard stools, needs to strain, or constantly feels obstructed may still have constipation.
2. 5 Mistakes That Can Prolong Chronic Constipation
| # | Mistake | Why It Prolongs Constipation | What to Do |
|---|---|---|---|
| 1 | Long-term inadequate dietary fiber intake | Reduces stool bulk and tends to make stools dry and difficult to pass through the colon | Gradually increase total fiber intake to approximately 20–30 g/day from vegetables, fruits, legumes, whole grains, seeds, and psyllium; drink enough water |
| 2 | Insufficient water intake | Makes stools drier and harder, particularly when fiber intake is increased without adequate fluid intake | Individualize fluid intake according to underlying medical conditions, physical activity, weather, and medications being used—do not follow commonly quoted fluid targets |
| 3 | Sedentary lifestyle | Lack of physical activity can contribute to constipation; limited mobility may also make patients more likely to delay the urge to defecate | Engage in regular physical activity within the limits of one's health; establish a regular time for bowel movements, usually 15–45 minutes after breakfast, and do not ignore the urge to defecate |
| 4 | Using only constipation medications without identifying and addressing the underlying cause | May overlook medications being used or underlying medical conditions that are causing constipation | Inform the treating physician about all medications being used; if warning signs are present, consult a gastroenterologist to identify any underlying organic cause |
| 5 | Overuse of enemas or stimulant laxatives | Prolonged use, dose escalation, or combining multiple types may cause abdominal cramps, diarrhea, dehydration, and electrolyte disturbances | Use only for short-term treatment or as rescue medication as directed; avoid sodium phosphate enemas in older adults |
2.1. Mistake 1: Long-Term Inadequate Dietary Fiber Intake
Many older adults consume fewer vegetables, fruits, and whole grains due to poor dentition, difficulty chewing, loss of appetite, or the habit of consuming large amounts of white rice, porridge, and refined foods. When the diet is low in fiber, stool bulk decreases and stools tend to become dry and difficult to pass through the colon.
The WGO considers dietary fiber one of the preferred measures for chronic constipation and recommends gradually increasing total fiber intake to approximately 20–30 g/day [1]. Appropriate sources of fiber include vegetables, fruits, legumes, whole grains, seeds, and psyllium. Fiber intake should not be increased too quickly, as this may cause bloating, abdominal distension, or cramping. When increasing fiber intake, patients should also drink enough water for the fiber to work effectively [1].
2.2. Mistake 2: Insufficient Water Intake
Some older adults intentionally drink less water because they are concerned about nocturia, urinary incontinence, or difficulties with mobility. Inadequate fluid intake or dehydration can make stools drier and harder, particularly when patients increase their fiber intake without adequately increasing fluid intake.
People with heart failure, kidney failure, or cirrhosis, or those who have been instructed by their doctors to restrict fluid intake, should not independently follow commonly quoted fluid intake targets. Fluid requirements should be individualized according to underlying medical conditions, physical activity level, weather, and medications being used to avoid constipation [3].
2.3. Mistake 3: Sedentary Lifestyle
Joint pain, muscle weakness, stroke sequelae, or prolonged bed rest can cause many older adults to become less physically active. Lack of physical activity is one of the factors that may contribute to constipation. Limited mobility can also make patients more likely to delay or ignore the urge to defecate.
Regular physical activity within the limits of one's health, such as walking or rehabilitation exercises, may support bowel function and improve overall health. Older adults should also establish a regular time for bowel movements each day, usually around 15–45 minutes after breakfast, allow sufficient time for defecation, and avoid holding in stool when they have the urge to defecate [4].
2.4. Mistake 4: Using Only Constipation Medications Without Identifying and Addressing the Underlying Cause
A common mistake is to repeatedly purchase laxatives whenever one has not had a bowel movement for several days without considering which medications are being taken or whether an underlying medical condition is causing the constipation [3].
| Factor Group | Specific Factors |
|---|---|
| Medications commonly used by older adults | Opioid pain medications, anticholinergic medications, some antidepressants, calcium channel blockers, iron supplements, and some antiepileptic medications |
| Underlying medical conditions | Hypothyroidism, diabetes, Parkinson’s disease, pelvic floor disorders, or tumors causing narrowing of the colorectal lumen |
Therefore, patients should inform their treating physician about all medications they are taking so that the dosage and type of medication can be appropriately adjusted. In cases with warning signs such as weight loss, loss of appetite, anemia, or blood in the stool, patients may need to consult a gastroenterologist for further investigations to identify an underlying organic cause of constipation, or undergo additional tests to evaluate disorders of colonic transit or defecatory disorders, rather than repeatedly changing medications on their own at home.
2.5. Mistake 5: Overuse of Enemas or Stimulant Laxatives
Enemas and stimulant laxatives often provide rapid relief, making them easy to use repeatedly. In particular, sodium phosphate enemas can cause severe electrolyte disturbances and should be avoided in older adults, especially those with kidney failure, cardiovascular disease, or dehydration [5].
3. When Should Older Adults With Constipation See a Doctor?
Older adults should seek medical attention promptly when constipation is newly developed or has clearly changed from their previous bowel habits.
Self-treatment should not be continued if constipation is accompanied by any of the following symptoms: blood in the stool, unintentional weight loss, anemia, persistent abdominal pain, vomiting, fever, abdominal distension, or inability to pass gas. These may be signs of fecal impaction, intestinal obstruction, or an underlying organic condition requiring medical evaluation [3].
4. Key Takeaways
Prevention and treatment of chronic constipation in older adults require a combination of measures: adequate fiber intake and appropriate fluid intake according to the individual’s health condition; maintaining physical activity and healthy bowel habits; and reviewing medications and underlying medical conditions while using laxatives appropriately. Treating the underlying cause can help achieve more sustainable symptom control than simply trying to “have a bowel movement immediately.”
5. Frequently Asked Questions
- How much fiber should older adults consume each day? According to the 2025 WGO guidelines, total fiber intake should be gradually increased to approximately 20–30 g per day from vegetables, fruits, legumes, whole grains, seeds, and psyllium. Fiber intake should not be increased too quickly, as this may cause bloating, abdominal distension, or cramping.
- Why does constipation sometimes not improve, or even cause more bloating, after increasing fiber intake? There are usually two reasons: fiber intake was increased too quickly, or insufficient water was consumed alongside it. Fiber requires adequate water to work effectively; increasing fiber without adequate fluid intake may make stools drier and harder.
- Which medications commonly used by older adults can cause constipation? Opioid pain medications, anticholinergic medications, some antidepressants, calcium channel blockers, iron supplements, and some antiepileptic medications. Do not stop medications on your own—inform your treating physician about the medications you are taking so they can be appropriately adjusted.
- Are stimulant laxatives prohibited for use in older adults? No. The 2023 AGA/ACG guideline still allows the use of bisacodyl or sodium picosulfate for short-term treatment or as rescue medication. The problem lies in prolonged self-use, increasing the dose, combining multiple types, or using medication to mask an undiagnosed underlying cause.
- Why should older adults avoid sodium phosphate enemas? These enemas can cause severe electrolyte disturbances, particularly in people with kidney failure, cardiovascular disease, or dehydration. Because enemas provide rapid relief, they can easily be used repeatedly—making them one of the mistakes that can contribute to persistent constipation.
6. References
- [1] Lee YY, Kamani L, Piscoya A, et al. A Global Cascade Approach to Diagnosis and Management of Chronic Constipation. World Gastroenterology Organisation Global Guidelines; 2025.
- [2] Chang L, Chey WD, Imdad A, et al. American Gastroenterological Association–American College of Gastroenterology Clinical Practice Guideline: Pharmacological Management of Chronic Idiopathic Constipation. Gastroenterology. 2023;164(7):1086–1106.
- [3] National Institute of Diabetes and Digestive and Kidney Diseases. Symptoms & Causes of Constipation. National Institutes of Health. https://www.niddk.nih.gov/health-information/digestive-diseases/constipation/symptoms-causes, accessed August 3, 2025.
- [4] National Institute of Diabetes and Digestive and Kidney Diseases. Treatment for Constipation. National Institutes of Health. https://www.niddk.nih.gov/health-information/digestive-diseases/constipation/treatment, accessed August 3, 2025.
- [5] Mounsey A, Raleigh M, Wilson A. Management of constipation in older adults. Am Fam Physician. 2015;92(6):500–504.
This content was developed by University Medical Center Ho Chi Minh City, with the support of Abbott Vietnam (VN-26-5441).
The information above is for reference purposes only and is not intended as medical advice. Please contact your doctor for detailed medical consultation.