Q: I’m 28 years old, and after a fever in August, I’ve been unable to get an automatic erection. It’s not there at night or in the morning, and I’ve heard people say that the inability to get an erection at night is organic impotence. I am very worried, I don’t know whether my case is organic impotence or functional impotence? Is it still possible to recover? Bin Wang: Normal men have 3-5 nocturnal erections every night, each lasting 20-30 minutes, totaling about 100 minutes. Nocturnal erection is an important sign of normal erectile function in men, and it is also the main clinical manifestation to identify functional erectile dysfunction and organic erectile dysfunction. However, nocturnal erections can be affected when you are tired, sick, or when you are emotionally stressed or anxious, and daytime erections may also be less normal. Through the standardized treatment of male doctors and appropriate psychological guidance, generally can be restored to normal, do not need to be overly nervous.