Why does eating crayfish cause diarrhea, and what should I do?

May 26, 2025 Source: Cainiu Health
Dr. Shen Yonghua
Introduction
Diarrhea refers to loose, watery stools. Generally, diarrhea after consuming crawfish may be caused by eating food that is too cold, overly spicy, or high in fat, as well as indigestion, food allergies, food poisoning, and other factors. Symptomatic management may involve general treatments and medication. If discomfort occurs, it is recommended to seek timely medical attention and receive appropriate treatment under a doctor's guidance.

Diarrhea refers to loose or watery stools. Generally, diarrhea after consuming small lobsters (crayfish) may be caused by factors such as overly cold food, excessive spiciness, high fat content, indigestion, food allergy, or food poisoning. Symptomatic management may involve general treatments or medications. If discomfort occurs, it is recommended to seek medical attention promptly and undergo appropriate treatment under a physician's guidance. Detailed explanations are as follows:

1. Cold Food

Excessively cold small lobsters can irritate the gastrointestinal mucosa, causing increased intestinal motility. Discontinuing consumption and applying warmth measures may gradually alleviate diarrhea symptoms.

2. Excessive Spiciness or High Fat Content

Too much chili or fat used during cooking can irritate the gastrointestinal mucosa. It is recommended to adjust dietary habits and choose bland, easily digestible foods, which can gradually improve diarrhea symptoms.

3. Indigestion

Small lobsters are high-protein foods; consuming excessive amounts at once can burden the gastrointestinal system. After stopping consumption, the gastrointestinal burden decreases, allowing digestive enzymes time to gradually break down residual food, thereby relieving diarrhea symptoms.

4. Food Allergy

If an individual is allergic to proteins in small lobsters, allergic reactions may occur after consumption. Consumption should be stopped immediately, and symptoms should be monitored for worsening. If severe allergic reactions such as difficulty breathing or rashes occur, immediate medical attention is necessary. Medications such as Cetirizine Hydrochloride Tablets, Loratadine Tablets, or Promethazine Hydrochloride Tablets may be used under a physician's guidance.

5. Food Poisoning

Improper storage or undercooked small lobsters may lead to bacterial growth and toxin production. Immediate medical evaluation is required, and medications such as Minocycline Hydrochloride Capsules, Levofloxacin Lactate Capsules, or Niuhuang Jiedu Tablets may be prescribed to alleviate symptoms according to medical advice.

In daily dietary habits, it is recommended to consume various foods in moderation, pay attention to freshness and cooking methods, and enjoy delicious food while promoting overall health.

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