Wasting away may be due to diseases such as diabetes, hyperthyroidism, malnutrition, tuberculosis, and tumors. If weight loss in a short period of time is accompanied by symptoms such as excessive drinking, eating and urinating, you may be suffering from diabetes and need to undergo tests such as glucose tolerance and pancreatic islet function to make a clear diagnosis. Wasting with symptoms such as panic, hand tremor, excessive sweating, etc., is considered to be hyperthyroidism, and need to be tested for thyroid function. If the long-term loss of appetite, poor digestion, may be gastrointestinal diseases caused by malnutrition. However, emaciation accompanied by hot flashes and night sweats, coughing up blood, etc., consider tuberculosis, and need to do chest X-ray, sputum culture, tuberculin and other tests. In addition, long-term consumption of malignant tumors, malignant disease, will also lose weight. If wasting occurs in a short period of time, it is recommended to go to the hospital in a timely manner to clarify the cause of the disease and then carry out targeted treatment.