There are many reasons for not having morning erections in the morning, such as recent stress, too frequent sex and drug effects. 1. Recent stress: may be due to the recent life, work pressure is too large, resulting in excessive mental tension, which leads to the phenomenon of no morning erection in the morning. 2. Frequent sex: frequent masturbation and frequent coitus can lead to the lack of morning erection in the morning. 3. Drugs: Long-term use of certain drugs, such as antihypertensive drugs thiazide diuretics, valium, etc. can also lead to male erectile dysfunction, resulting in the phenomenon of no morning erection. There are many other reasons that can lead to no morning erection, such as hypogonadism, major surgery, etc. It is recommended that such patients go to a regular hospital to clarify the cause and actively seek medical attention.