1. Insufficient fluid intake:
When the daily fluid intake is less than 1500ml, the water in the intestine decreases, which will cause dry stool and decrease the amount of stool and cause constipation.
2. Insufficient dietary fiber intake:
Dietary fiber not only increases stool volume, retains moisture, thereby softening stool, but also promotes intestinal peristalsis. Insufficient dietary fiber intake reduces the stimulation of the intestinal wall, affects intestinal peristalsis and causes constipation.
3. Lack of long-term exercise:
Long-term lack of exercise, intestinal peristalsis function declines, stool stays in the intestine for too long, water is absorbed, resulting in dry stool, which can induce or aggravate constipation.
4. The defecation environment is not suitable:
The lack of privacy in the defecation environment, the inconvenient defecation facilities, the inability to defecate independently, the need for others to assist in defecation, etc., will cause the elderly to decrease their willingness to defecate, thereby inducing or aggravating constipation.
5. Mental and psychological factors:
The elderly often face many basic diseases, widowhood or living alone. Psychological factors such as anxiety and depression not only affect the sensory, motor and secretory functions of the gastrointestinal tract, but also inhibit the parasympathetic nerves, weaken the bowel reflex, and induce or aggravate constipation .
6. Drug-related factors:
The drugs commonly used by the elderly such as antihypertensive drugs (amlodipine), diuretics (furosemide, etc.), antiarrhythmic drugs (amiodarone, etc.), chemotherapy drugs (vincristine, etc.), antiparkinsonian drugs ( Bentropine, etc.), antidepressants (amitriptyline, etc.), antipsychotics (chlorpromazine, etc.) can cause or aggravate constipation.
7. Organic diseases:
Common organic diseases in the elderly such as intestinal diseases (colon cancer, hemorrhoids, etc.), endocrine diseases (hypothyroidism, diabetes, etc.), electrolyte disorders (hypokalemia, etc.), neurological diseases (Parkinson’s disease, Cerebrovascular diseases, etc.) can cause constipation.