Diarrhea after eating beef can be caused by spoiled beef, indigestion, gastrointestinal diseases and other conditions. 1. Beef spoilage: If you eat beef is not fresh and has spoiled, you may have diarrhea after eating beef. 2. Indigestion: eating beef after the cold or beef is not fully cooked and other conditions, resulting in indigestion can also occur after eating beef diarrhea. 3. Gastrointestinal diseases: beef is not well digested, if the patient himself suffers from gastritis, enteritis and other gastrointestinal diseases, after eating beef to increase the digestive burden on the stomach and intestines, diarrhea, abdominal pain and other symptoms may occur. Eat beef diarrhea may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination and targeted treatment with the help of doctors.