What should I do about dry stools after anal fistula surgery?

In general, dry stools after anal fistula surgery may be caused by insufficient dietary fiber intake post-surgery, fear of defecation leading to avoidance of straining, intestinal flora imbalance, reduced physical activity after surgery, or inflammatory stimulation around the anus. It is recommended to seek medical attention promptly, identify the underlying cause, and improve the condition under a doctor's guidance through general management, medication, and other methods. Specific causes are analyzed as follows:

1. Insufficient dietary fiber after surgery: Consuming overly refined foods post-surgery leads to inadequate fiber intake, slowing intestinal motility and resulting in dry stools. Adjust the diet by eating more high-fiber foods such as celery, spinach, and apples. Ensure a daily water intake of 2000 mL to promote intestinal movement.

2. Fear of defecation and reluctance to strain: Patients may fear that bowel movements could irritate the anal fistula wound, causing pain or bleeding, thus deliberately suppressing the urge to defecate, which prolongs stool retention in the intestines and leads to drying. Establish a regular bowel habit, concentrate during defecation, and use a bedpan if necessary under medical guidance to reduce pressure on the wound.

3. Intestinal flora imbalance: The use of antibiotics or fasting after surgery can disrupt the balance of intestinal bacteria, impairing digestive function and causing constipation. Take medications such as Bifidobacterium triple viable capsules, Bacillus subtilis and Enterococcus faecalis viable granules, or Bacillus licheniformis viable capsules as prescribed to restore intestinal flora balance.

4. Reduced physical activity after surgery: Prolonged bed rest or sitting after surgery weakens intestinal motility, slowing stool propulsion and contributing to dryness. Gradually increase physical activity according to recovery progress—start with slow walking beside the bed initially, then transition to light exercises such as walking.

5. Perianal inflammatory stimulation: Inflammation at the anal fistula site can stimulate surrounding tissues, reflexively inhibiting intestinal motility and leading to dry stools. Follow medical advice to use potassium permanganate solution for sitz baths, and apply topical medications such as mupirocin ointment, fusidic acid cream, or compound polymyxin B ointment to control inflammation and promote wound healing.

Avoid spicy and irritating foods such as chili peppers and Sichuan pepper in daily life to minimize wound irritation. Gently clean the perianal area with warm water after bowel movements to keep the surgical site clean and dry. Maintain a regular sleep schedule and avoid staying up late. Comprehensive care can help alleviate dry stools and support proper healing of the anal fistula wound.