For patients who have problems with sexual function, the author usually asks, “Is there a morning erection?” , Why do you ask this question? How significant is morning erection to men? What are the hints for sexual function? Listen to me in detail. A normal man’s penis is usually in a weak state, except for erection under sexual stimulation and some external stimulation. Morning erection refers to the unconscious and natural erection of the penis in the early morning from 4-7 am, which is not controlled by the situation, action or thinking. Morning erections are an important indicator of normal sexual function and strength. However, morning erections are also affected by the following factors – Age factor: under normal circumstances, age plays a determining factor in morning erections. Starting from sexual maturity, the younger the age, the more frequent and longer the duration of morning erections, with age, morning erections also gradually weakened or decline. Disease factors: Many diseases can affect sexual function and morning erections. Such as hypertension, coronary heart disease, leukemia, tuberculosis, malignant tumors, diabetes mellitus, lumbar disc herniation, crest injury, venereal disease and so on. Drug factors: anti-tumor drugs, anti-hypertensive drugs, treatment of diabetes drugs, antacid drugs, sedative drugs and traditional Chinese medicine Zhimu, cypress, licorice and other drugs can make the morning erection lower; and ginseng, astragalus, antler velvet, deer whips, sea dog kidneys, horny goat weed, goji berries, Morinda citrifolia, Da Rue and other medicines can make morning erection obvious. Sleep: sleep time is sufficient or not and the quality of sleep will affect the secretion of hormones to varying degrees, thus affecting the morning erection to varying degrees. Unhealthy lifestyle habits: such as excessive smoking, drinking, irregular work schedules, and too little sleep at night can also affect morning erections. Other factors: such as mental factors, cardiovascular factors, endocrine factors, hypopituitarism, environmental pollution, etc., can also make the morning erection lower, or even disappear. Third, morning erection is not an absolute indicator of ED Morning erection as one of the reference standards of health is very important to men. It is worth noting that, due to the different state of the male body every day, the morning erection is not consistent, can not rely solely on whether there is a morning erection, to judge the good or bad of men’s sexual function, so we need to be scientific and objective understanding of the morning erection. Clinical studies show that more than 70% of patients reported that they had a morning erection in the pre-ED period, accompanied by the disappearance of this symptom. Therefore, doctors often in the consultation with the presence or absence of morning erections preliminary distinction between psychogenic ED (erectile dysfunction) and organic ED is the simplest way. For ED patients, if they still have an erection when they wake up early in the morning, then it is likely to be caused by psychological factors. On the contrary, there is the possibility of organic factors, which requires further consultation as well as special examination. Men can pay more attention to their morning erections. If you find that your morning erections have disappeared, it may be a sign that you have not had a good night’s rest, or a sign that you are suffering from a disease, and you should pay attention to it. While considering the possibility of ED, do not be overly nervous, and do not take medication on your own, but go to the hospital in time.