Elderly people wasting for persistent weight loss, it suggests that may be suffering from diseases, such as hyperthyroidism, diabetes, gastrointestinal diseases, consumptive diseases, etc., need to be targeted treatment; if only a short-term weight loss, may be a normal weight fluctuations, no treatment. 1. Hyperthyroidism: Hyperthyroidism patients clinically manifested as overeating, hunger, weight loss, panic, etc., the common clinical symptoms of the elderly is weight loss. Antithyroid drugs can be chosen to treat the disease. At the same time, daily life should pay attention to rest, appropriate exercise, quit smoking and drinking, and control the iodine content in the diet. 2. Diabetes mellitus: The clinical symptoms of diabetes mellitus patients are excessive drinking, excessive urination, excessive eating, emaciation, and diabetes mellitus if the blood glucose level rises abnormally. At this time, we need to control the blood sugar level in time, such as eating less high-sugar food, reasonable exercise to consume sugar, if necessary, we need to use metformin and other drugs. 3. Gastrointestinal diseases: some gastrointestinal diseases will lead to the inability to absorb nutrients, eat more but not fat. At this time, you should eat less stimulating food, reasonable rest, if necessary, you can take bifidobacteria tablets and other drugs. 4. Consumptive diseases: such as tumors, tuberculosis and other serious consumptive diseases, so that the body organs gradually fail, unable to absorb nutrients caused by wasting. If it is early, it can be cured by removing the lesion. If it is only a transient weight loss, it may be a normal weight fluctuation, without special treatment, and can be recovered in a short period of time. The above medications should be taken under the advice of a medical professional. It is recommended that the elderly should go to the hospital in time to identify the cause of the disease and take targeted treatment when wasting occurs.