”It is probably every man’s dream to be as hard as a “golden gun” and not fall down. However, sometimes the “golden gun” is not only uncomfortable, but can also be a pathology that leads to permanent erectile dysfunction. How to distinguish between what is normal and what is pathological? The penis is enlarged and hardened under the effect of sexual stimulation, through nerve and vascular diastolic regulation, a large amount of blood flows rapidly into the penile corpus cavernosum, usually after an orgasm, the blood vessels connected to the outside world open again, like a drain, so that the accumulated blood in the penile corpus cavernosum is discharged, and the penis becomes smaller and softer again. In this whole process, the penis does not feel any discomfort. The pathological “golden gun”, also called abnormal penile erection, is a condition in which the penis remains erect for more than 4-6 hours without sexual desire or stimulation and does not subside. After the onset of the disease, the patient’s penis continues to be firm and does not wither, and often accompanied by swelling and pain and difficulty in urination, this clear condition can last for hours, days or more, such a “golden gun” does not have any sexual interest to speak of, and is exceptionally painful, mainly due to various causes of the penis for a long time to swell and engorged. When the abnormal erection of the penis occurs, a large amount of blood accumulated in the penis can not flow out, time and time, hypoxic state of the red blood cells will become very stiff, the blood vessels connected with the outside world will all be bolted shut, so that the penis has become a closed cavity completely isolated from the outside world, the penis will gradually edema, and eventually necrosis. Some physical diseases such as sickle cell anemia, leukemia, spinal fracture, paralysis, etc. can thicken the blood or make the red fine belly lose elasticity and fluidity, which may lead to abnormal erection of the penis; some drugs such as antidepressants and antihypertensives may also lead to abnormal erection of the penis. There is also a condition where there is too much blood supply to the arteries and too little return flow, which leads to abnormal erection of the penis, such as aneurysm. Once an abnormal penile erection occurs, do not be ashamed to seek medical attention and make sure to deal with it as soon as possible. It is best not to allow the penis to remain erect for more than 4 to 6 hours, let alone more than 12 hours. Studies have found that once the penile cavernous tissues are ischemic for more than 12 hours, the chance of tissue necrosis is more than 90% abnormal penile erection is usually made weak by intra-penile injection of vasoconstrictive drugs, such as Neufcholine. Another common method is penile cavernous body aspiration and bleeding, the blood accumulated in the penis slowly sucked out, sometimes with saline flushing penile cavernous body, until the penis is completely weak. If these methods do not work, surgery is required as soon as possible.