The tether usually refers to the foreskin tether, which if too short may cause premature ejaculation and requires prompt medical attention and treatment. The prepuce tie is mainly located in the lower part of the glans and may also exist inside the foreskin, which is rich in blood vessels. Due to the strong stretching force, it can be significantly elongated when the penis is erected. Because of the rich nerve fibers in the prepuce tie, it is very sensitive to external stimulation. Its and the coronary groove is the most sensitive part of the penis, is also an important male sexual sensitive area. If the foreskin tie is too short, it may affect the amplitude, strength and frequency of the penis in the vagina, which can make ejaculation premature or not easy to happen. When the pain during sexual intercourse is caused by excessive tension on the foreskin tie, it may affect the experience of sexual life. It is recommended that this condition should be treated in a timely manner under the guidance of a doctor.