Men with poor resistance to frequent colds may be caused by immunodeficiency, application of immunosuppressants, long-term unhealthy lifestyle, etc., which can be targeted to regulate and improve their immunity. 1. If the patient has immunodeficiency, should actively find the cause of the disease, for the cause of the treatment, at the same time can be used to improve the immunity of the drug treatment, such as splenic aminopeptide, immunoglobulin and so on. People with immunodeficiency should pay attention to good protection in daily life, avoid going to crowded places, wear masks when going out, and wash their hands diligently to reduce the risk of infection. 2. Some men’s poor resistance is caused by immunosuppressant drugs, generally, a doctor needs to comprehensively assess the pros and cons of the drug, and the drug will gradually improve after discontinuing the drug. During the period when the medication must be taken, attention should be paid to good daily protection to avoid the occurrence of colds. 3. Some men due to long-term unhealthy lifestyle caused by immunity decline, need to be adjusted from the lifestyle, such as more sunshine, adhere to exercise, maintain balanced nutrition, avoid staying up late, quit smoking and drinking. If you are not feeling well, we recommend that you go to the hospital to further improve the relevant laboratory tests, in order to identify the cause of the disease and standardize the treatment under the guidance of the doctor.