Abdominal pain after eating eggs may be caused by allergic reactions, acute gastroenteritis and other phenomena. 1. Allergic reaction: some people are allergic to eggs, after eating eggs may appear red rash, abdominal pain, diarrhea and other symptoms, such people need to avoid allergens, can be treated with anti-allergy drugs, such as loratadine and other drugs. 2. Acute gastroenteritis: this group of people is mostly due to bacterial infections, if the eggs are left for too long to deteriorate, it may lead to the occurrence of acute gastroenteritis, abdominal pain, bloating, nausea, vomiting and other symptoms, you can take levofloxacin and other drugs for treatment. The medication needs to be applied under the advice of a doctor, and prompt medical attention is recommended.