Erectile dysfunction is defined as an erection that is not hard enough to penetrate the vagina or an erection that is not maintained long enough to complete sexual intercourse, and the inability to achieve or maintain an erection sufficient for a satisfying sex life. Erectile dysfunction is one of the most common male sexual dysfunctions, which seriously affects the quality of sexual life. Having erectile dysfunction in men is undoubtedly a fatal blow to male fertility. The most serious is that men’s erectile dysfunction will lead to the failure of sexual life will lead to infertility. ED causes infertility hazards: 1. The strength of male erection definitely plays an important role in fertility, so the impact of male erectile dysfunction on fertility is also more obvious. The patient will be with the disease damage aggravation, manifested in the sexual desire to reduce or disappear. So in the long run it will cause infertility to worsen. 2. Male erectile dysfunction can be caused by many diseases, so when men have male erectile dysfunction, the first thing they should do is to check if they are suffering from other chronic diseases, which is a great burden to the patients’ health. So for male erectile dysfunction must give enough attention, not to give its harm hidden danger. 3. The patient’s mental psychology will be a serious blow to the life of the loss of self-confidence, emotional depression will cause some of the symptoms of mental weakness. Night sleep is also often insomnia and dreamy, thus forming a great disturbance to the life. Can ED patients have children? ED is not untreatable, and with regular treatment, it is possible to have children. Of course, before treatment options for erectile dysfunction are available, patients should first be instructed to remove the various triggers and risk factors that cause erectile dysfunction. Many of the triggers and risk factors can be overcome, such as drug factors, smoking and alcohol abuse, and improving the couple’s relationship. It is also necessary to strengthen the treatment of primary diseases, such as diabetes mellitus, hypertension, hyperlipidemia, endocrine diseases and so on. If necessary, ART treatment can be used to solve the fertility problem first. In particular, PDE5 inhibitors (Viagra, etc.), which are often used to treat ED, are safe to use during conception.