No morning erection at the age of 27 may be related to factors such as high mental stress, declining sexual function and frequent sex life. 1. Mental stress: If a man is in a mentally stressful environment for a long time, it will easily lead to abnormal hormone secretion, resulting in the phenomenon of no morning erection. For this situation, it is recommended to learn to discharge the psychological pressure, if necessary, can change the living or working environment, so as not to continue to bring adverse effects on the body. 2. Decline in sexual function: This is mainly due to the decrease in testicular secretion of androgen, which may lead to the problem of no morning erection. If the symptoms are more serious, testosterone undecanoate can be used to supplement androgens. Need to pay attention to the side effects and adverse reactions of drugs, please use the above drugs under the guidance of a doctor. Meanwhile, you should take good care of yourself in life and do scientific physical exercise. 3. Frequent sex life: If excessive masturbation or frequent intercourse, it will lead to excessive semen consumption, physical weakness, and then the symptoms of unable to have morning erections. In the face of this problem, we must learn moderation, reduce the number of masturbation or coitus, and participate in more aerobic exercise in order to improve physical fitness. At the age of 27, the sexual function is relatively strong, so it is not usually the case that you can not get a morning erection. If you don’t have morning erections, you should consult a doctor in time to improve the examination, clarify the cause of the disease, and follow the doctor’s instructions to standardize the diagnosis and treatment.