The reason for premature ejaculation is the following: 1, may be due to mental stress or excessive emotional tension, anxiety caused, in daily life to maintain a good mood, avoid overwork. 2, may be due to frequent masturbation habits, or the number of times too frequent sex life caused, usually avoid too much sex life. 3, may be a deficiency of qi and blood and the symptoms of kidney deficiency, you can The man premature ejaculation is caused by a variety of factors, so we must develop good habits, reduce bad habits, and eat more yin and kidney food in the diet.