If too thin is genetic and other physiological reasons, no special conditioning, if it is caused by hyperthyroidism, tuberculosis and other diseases, need to take medication for the cause of the disease, chemotherapy and other ways of treatment. 1. Heredity: If too thin is genetically caused by congenital not easy to grow fat physique, generally do not need to carry out special conditioning. Usually reasonable with meals, balanced nutrition, to ensure a balanced intake of various nutrients can be. 2. Hyperthyroidism: common symptoms include weight loss, excessive sweating and irritability. Patients need to follow the doctor’s instructions to apply propylthiothiophene, formamide imidazole and other anti-thyroid drugs. At the same time, it is necessary to follow the doctor’s instructions to assist the application of propranolol, bisoprolol and other beta-blockers. For patients whose long-term medication is ineffective and their condition is serious, surgical treatment such as subtotal thyroidectomy should be considered. 3. Tuberculosis: Typical symptoms include cough, sputum and weight loss. For hemoptysis patients need to follow the doctor’s advice to apply aminocaproic acid, aminomethic acid and other antiemetic drugs, for high fever patients need to follow the doctor’s advice to apply ibuprofen, acetaminophen and other antipyretic drugs. Secondly, patients need to cooperate with doctors to apply isoniazid, rifampicin, pyrazinamide and other chemotherapeutic drugs. If the above treatments are ineffective, surgical treatment of tuberculosis should be considered. To summarize, if you exclude the genetic cause of too thin body, you need to go to the hospital in time to clarify the specific causes, and cooperate with the doctor to actively treat the original disease, so as not to delay the condition.