Frequent colds suggest that the patient’s immunity is low. It may be related to bad habits, such as over-excited, over-exertion, etc. It may also suggest that the patient has a disease that affects the immunity, which may be a serious disease that needs to be taken seriously. Frequent colds may be caused by bad habits, such as not paying attention to warmth, overwork, malnutrition and so on. In addition, there may also be a hint that the patient has a disease that can cause a decline in immunity, such as diabetes, acquired immunodeficiency disease (i.e., often referred to as AIDS, etc.), you can go to the hospital to improve the relevant examination, a clear diagnosis, and then actively treat. The presence of cold symptoms is not necessarily caused by colds. For example, recurrent runny nose may be allergic rhinitis, and recurrent cough may be cough variant asthma. Therefore, if you have frequent colds, you need to go to the hospital, complete the examination, and follow the doctor’s instructions for medication.