Many early stage AIDS patients have no symptoms and only a few may develop diarrhea. If diarrhea occurs, it means that the patient’s immune function is extremely low, CD4 cells are low, and once diarrhea occurs, it lasts for a long time. Therefore, if such a situation is found, it is recommended that the patient go to the hospital in time to get a clear diagnosis and apply antiviral drugs as soon as possible. The fundamental solution is to apply antiviral drugs and to use Chinese herbal medicine in the process, especially for diarrhea in AIDS patients. Diarrhea in AIDS patients should also be taken seriously, as many patients actually die of severe malnutrition, cachexia, long-term diarrhea and eventually consumption.