Can I eat crab after anal fistula surgery?

Feb 21, 2025 Source: Cainiu Health
Disease description:

I have been craving crabs recently, so my wife went and bought some. However, I recently underwent surgery for an anal fistula and am concerned that eating crabs might cause discomfort. May I ask if it's okay to eat crabs after anal fistula surgery?

Doctor's answer (1)
Dr. Li Jingxiang

After surgery for anal fistula, the diet should be light and easy to digest, aiming to reduce the burden on the gastrointestinal tract, avoid irritation to the wound from constipation or diarrhea, and promote wound healing. Generally, patients can eat crab after anal fistula surgery, but should consume it in moderation.

From a nutritional perspective, crab contains abundant protein, which is beneficial for postoperative wound healing and physical recovery. Therefore, from a Western medicine perspective, moderate consumption of crab after anal fistula surgery is acceptable, but attention should be paid to the cooking method. Since crab is cold in nature and its surface, gills, and gastrointestinal tract may contain bacteria and silt, improper handling or consumption methods might lead to adverse effects on the body. Therefore, when consuming crab, it is important to ensure that it is fresh, clean, and thoroughly cooked to avoid food poisoning or bacterial infection.

Patients should consume some fiber-rich foods, such as vegetables and fruits, together with crab, which helps promote intestinal motility and prevent constipation. Adequate rest and proper wound care are also important for recovery.