Dizziness and weakness of the limbs diarrhea mainly includes acute diarrhea and chronic diarrhea two cases, due to diarrhea leads to dehydration, electrolyte disorders, acid-base imbalance, so dizziness and weakness. 1. Acute attack: Usually due to unclean diet or cold after the infectious diarrhea, such as cholera, acute gastroenteritis, bacillary dysentery, etc., this time should be a light diet, and appropriate hydration. If you can not eat through the mouth, you can also go to the hospital through intravenous drip. 2. Chronic episodes: if diarrhea lasts for a long time, you should be alert to the possibility of gastrointestinal problems, the presence of tumors in the body may also have diarrhea, and perform colonoscopy; gastric cancer may also have similar symptoms, go to the gastroenterology department of the hospital in a timely manner to improve the examination and make a clear diagnosis; it may be ulcerative colitis, which will also have diarrhea, and be treated with medication under the guidance of the doctor. It is recommended to consult the doctor in time and follow the doctor’s instruction for treatment to avoid adverse consequences.