Boyfriend premature ejaculation may be mainly just started intercourse, sexual excitement, too nervous, the sensitivity of the glans is high, easy to appear premature ejaculation. This situation is the vast majority of premature ejaculation is caused by psychological factors, must be mutual comfort, mutual encouragement. Especially many men for the first time sexual intercourse soon hastily, this situation is the high sensitivity of the glans, sexual skills are not enough, you can use a condom, you can also use lidocaine aerosol in the glans, so that the glans sensitivity is significantly reduced, you can prolong the ejaculation latency through the role of local anesthesia. Generally through 3-5 times of practice, premature ejaculation will be significantly improved.