Erection preventers can be harmful if worn for a long time, and can lead to erectile dysfunction as well as urethritis. The use of erection control devices in the clinic must be careful, because the use of this device can be used to pressure on the corpus cavernosum of the penis, which can lead to blood circulation disorders and varicose veins in serious cases. At the same time, bad use can lead to the spongy body of the penis to tear, the patient will experience severe pain, and in severe cases can lead to erectile dysfunction. At the same time due to the use of erection prevention device can make the penis spongy body frequent blood congestion. It is possible to increase the probability of urethritis and prostatitis, so in the clinical use of this instrument, must listen to the professional doctor’s opinion, follow the doctor’s advice to use, you can go to the local hospital urology consulting consultation, the above views are for reference only.