What are the common examination methods for erectile dysfunction?

Patient's question:

Common Chinese and Western medicines for treating premature ejaculation

Doctor's answer:

Erectile dysfunction refers to the inability to achieve or maintain an erection when sexually aroused, or the inability to maintain a sufficient level of hardness during masturbation for a prolonged period, thereby interfering with or preventing the completion of masturbation. There are several causes of premature ejaculation. One is psychological factors, such as emotional indifference between partners or stress due to certain reasons, which can lead to premature ejaculation. If masturbation is excessive, the erection center may remain in a state of tension for a long time, eventually resulting in premature ejaculation. Another is physical factors, such as abnormalities in the erection center.