The common clinical causes of colds after intercourse are body fatigue, cold, and sex partner infections. 1. physical exhaustion: after sex, the body will consume a lot of energy, the body is in a state of exhaustion, at this time the resistance will be reduced, if you do not do a good job of warmth, replenishment of energy and other protective measures, the body is susceptible to pathogens and colds. 2. Cold: This is the most common cause of colds for girls. When the ambient temperature is too low or the girl does not do a good job of keeping warm, the body is easy to get cold and appear sneezing, coughing, runny nose and other cold symptoms. 3. Sexually transmitted by partners: If the man himself has a cold, the girl will easily be infected after contact with him and develop cold symptoms. If the above situation exists, it is recommended to consult a doctor as soon as possible to clarify the diagnosis and follow the doctor’s instructions for further treatment.