Men may experience various problems during sexual intercourse, and there is no more painful problem than ‘impotence’. There are a lot of online counseling and consultation men do not understand what impotence is all about, so it is necessary to teach how to self-identify and diagnose ‘impotence’. 1, continuous fighting suddenly not hard. Even the healthiest people have times when they are not in shape! Penile erection is the same. Some young men rely on the body strong, a few days in a row, frequent sexual intercourse or 1 day many times sexual intercourse, because of the excessive consumption and thus the penis erection is not hard, or completely hard to get up the situation, this is a very normal phenomenon, do not have to be anxious and nervous. Of course, if you just the last few days erection is not good, there is no need to panic, to analyze your recent is not the following reasons: work intensity and fatigue, psychological stress, diet and work and rest irregularities, excessive sadness and so on, these daily work and life changes will have a negative impact on the physical condition, of course, erectile dysfunction will be suffering as a result. 2, usually erection is very good but in the critical time can not. Some men usually have a good erection when no one is around or when they masturbate, but when it comes to the crucial time, they are not hard enough or simply can’t get it up. At root, these men’s erectile function should not have any major problems, the reason for poor erection is generally related to psychological factors. Young sexually inexperienced men are more prone to this condition. It has to do with young men’s lack of sexual knowledge and being too mysterious about sex. Once these men have a hard erection or failed penetration during sexual intercourse, they will form a psychological shadow and cause adverse psychological effects on the next sexual intercourse. A sense of guilt towards the woman is more likely to lead to repeated failures in sexual intercourse; the patient will gradually lose interest in sexual life and avoid sexual intercourse as a result. The woman’s dissatisfaction is more likely to make impotence symptoms worse. 3, masturbation erection and ejaculation is normal, but in normal sexual intercourse weakness, or even not ejaculate. It is generally believed that masturbation has no adverse effect on health, but it is true that some men experience impotence and premature ejaculation because of masturbation. The reason for this is that on the one hand, there is a relationship with the psychological anxiety caused by masturbation, on the other hand, due to the hand of the stimulation of the strength of the hand is relatively large, long-term and frequent masturbation will make the penis adapted to this intensity of the stimulation mode is relatively large, and to the vagina of this weaker stimulation mode to lose the response. 4.The erection used to be fine, but now it is getting weaker and weaker. Some men were quite good a few months or years ago, but recently they have gradually failed, and their hardness is getting worse and worse. For example, there is a gradual decrease in the hardness of the erection, or it is difficult to penetrate, or it is simply impossible to penetrate, or even if penetration is successful, it weakens before ejaculation. If you have any of these symptoms, you need to be checked out further, there may be something really wrong with the erection! Blood tests and erection monitoring are usually needed to check this out initially. It is important to note that many diseases have impotence as their first symptom, such as diabetes. 5. Impotence occurs after other illnesses such as trauma or taking certain medications. ①Taking the following drugs are prone to impotence: antihypertensive drugs, anti-psychotic drugs, anti-androgen drugs may cause impotence. Impotence occurs after paraplegia and pelvic fracture caused by crural injury, the former is damage to the erectile nerve, the latter is damage to the blood vessels and nerves, thus causing impotence. Similarly, impotence after prostate cancer surgery and pelvic surgery is also caused by neurovascular damage; patients with abnormal penile erection after treatment are impotent due to ischemic necrosis of cavernous body. 6, seemingly impotence is actually premature ejaculation. Some men ejaculate very quickly or even before the penis is inserted, and after ejaculation, the penis becomes weak. They think this weakness is impotence.