There are many clinical causes of limb weakness and vomiting, including cold and fever, heat stroke, hypokalemia, and food poisoning; in addition, patients with malnutrition, pregnancy, acute gastroenteritis, hypotension, cervical spondylosis, and liver and kidney disease may also experience limb weakness and vomiting. Patients need to seek timely medical attention for symptomatic treatment of the cause as well as the symptoms. 1, cold and fever: patients in addition to limb weakness, nausea and other symptoms, there are usually nasal congestion, fever, mental lethargy and other symptoms, can rest, drink more water, appropriate antipyretic or cold medicine, vomiting serious people can take antiemetic; 2, heat stroke: if it is in the high temperature and high humidity environment activities for a long time, may lead to heat stroke, patients can appear dizziness, headache, limb weakness, nausea and vomiting and other symptoms, can be moved Patients can be transferred to a ventilated and cool place for physical cooling, and if necessary, seek medical treatment; 3. Hypokalemia: long-term diarrhea, anorexia, weight loss, etc., can lead to low blood potassium, which can easily lead to weakness of limbs, nausea, palpitations and other symptoms, and should be promptly replenished with potassium, which can be done through food as well as drugs; 4. Food poisoning: especially neurological food poisoning, patients can have weakness of limbs, nausea and vomiting and other symptoms, and need Symptomatic support treatment such as rehydration; 5, other: patients with malnutrition, pregnancy, acute gastroenteritis, hypotension, cervical spondylosis, liver and kidney diseases, etc., may also have symptoms of weakness of limbs and desire to vomit, and patients need to carry out cause-specific treatment after clarifying the cause.