Why does the frequency of bowel movements increase in the late stages of pregnancy?
Nov 29, 2024
Source: Cainiu Health
Dr. Shen Yonghua
Introduction
Increased bowel movements during the late stages of pregnancy can be caused by hormonal changes, fetal pressure, dietary stimulation, gastrointestinal dysfunction, or acute gastroenteritis. As pregnancy progresses, the enlarging uterus exerts pressure on the pelvic and lower abdominal organs, including the intestines, which may indirectly lead to an increase in bowel movements. Resting in a left lateral recumbent position can help alleviate the pressure exerted by the uterus on the intestines.
In general, increased bowel movements during late pregnancy can be caused by hormonal changes, fetal pressure, dietary irritation, gastrointestinal dysfunction, or acute gastroenteritis. If discomfort occurs, timely medical consultation is recommended. Detailed explanations are as follows:
1. Hormonal Changes
During late pregnancy, changes in hormone levels—especially increased progesterone—can affect intestinal motility, leading to more frequent bowel movements. Maintaining adequate hydration and consuming fiber-rich foods such as fruits, vegetables, and whole grains can help regulate intestinal motility.
2. Fetal Pressure
As pregnancy progresses, the growing uterus exerts pressure on the pelvic and lower abdominal organs, including the intestines, which may indirectly increase bowel movement frequency. Resting in a left lateral position can help relieve uterine pressure on the intestines.
3. Dietary Irritation
In late pregnancy, pregnant women may increase food intake to meet nutritional needs or prefer acidic, spicy, or irritating foods. These foods can stimulate the intestines and increase bowel frequency. It is recommended that pregnant women eat reasonable portions, opt for frequent small meals, ensure balanced nutrition, and drink adequate water to promote metabolism.
4. Gastrointestinal Dysfunction
In the later stages of pregnancy, irregular eating habits or overeating may lead to gastrointestinal dysfunction. This dysfunction can affect normal intestinal motility and emptying, resulting in increased bowel movements and possibly causing symptoms such as bloating and increased flatulence. It is recommended to follow medical advice regarding the use of medications such as omeprazole enteric-coated capsules, lansoprazole enteric-coated tablets, or pantoprazole sodium enteric-coated capsules for treatment.
5. Acute Gastroenteritis
If a pregnant woman consumes contaminated food or contracts an infection from other pathogens during late pregnancy, acute gastroenteritis may develop. This condition can cause intestinal mucosal congestion and edema, impairing normal intestinal function and increasing bowel frequency, often accompanied by symptoms such as nausea and vomiting. Patients should follow medical advice regarding the use of medications such as enteritis relief tablets, compound berberine tablets, or smectite powder for treatment.
It is recommended to moderately increase water intake to maintain sufficient hydration, which helps soften stools and reduce the occurrence of constipation.
