A number of biological factors might contribute to premature ejaculation, including: Abnormal hormone levels. Abnormal levels of brain chemicals called neurotransmitters. Inflammation and infection of the prostate or urethra.
Besides, what causes a man not to erect?
Erection problems can have many causes. These include: Physical problems, such as injury to nerves or loss of blood supply to the penis. Other health problems, such as diabetes, high blood pressure, anxiety, and depression.