The first time coitus is very fast the second time a long time to consider because the first over-excited, may also be a long interval between sex life and the patient’s glans sensitivity is too high. 1. Excessive excitement: if the male patients in the first time before sex in the state of excessive excitement, will be due to mental over-excitement caused by the cerebral cortex to control ejaculation ability has been reduced, the male patients will be the first time to have sex soon phenomenon, in the second will be relieved. 2. Long interval between sexual life: If men do not have sex for a long time, it will lead to excessive accumulation of semen, the pressure is relatively large, which will lead to the phenomenon of the first time the patient has sex very quickly, while the second time there is no such a situation, so there will be a long time for the second phenomenon. 3. High glans sensitivity: If the male patient’s glans sensitivity is high, it will lead to the phenomenon that the patient will have a very fast sex life for the first time. After ejaculation, the sensitivity of the patient will be reduced, and the phenomenon of the second time a long time. The first coitus is very fast and the second one is very long due to a variety of factors, patients should adjust their mindset before having sex and have sex in moderation. If there is any discomfort, please consult a doctor in time.