Patient's question:
When I am intimate with my girlfriend, sometimes I experience testicular pain. It happens occasionally, not frequently.Doctor's answer:
Hello, sexual desire is an extremely complex neurological reflex activity. Various intimate actions such as romantic conversations, hugs, kisses, and the like can serve as sexual stimuli, reflexively exciting the sexual center of the cerebral cortex through senses like vision, hearing, and touch. The cerebral cortex transmits the excitement to the spinal cord. On one hand, it excites the spinal cord's central control of genital erection, causing penile erection. On the other hand, it increases the secretion of glands and ducts in the reproductive system. A large amount of secretions (mainly prostatic fluid, seminal vesicle fluid, etc.) accumulates in the seminal vesicles, vas deferens, epididymis, and their urethra. At this point, if sexual activity occurs, through ejaculation, these secretions form semen, along with sperm, and are expelled. However, if sexual intercourse does not take place, these secretions cannot be expelled and present a state of "accumulated semen unable to overflow." This causes passive expansion of the prostate, vas deferens, and their epididymis, stimulating the nerves of these organs and reflexively causing distension and pain. Initially, it may only occur in the testicles. If sexual excitement is not restrained, the pain may spread upward along the vas deferens, causing abdominal pain, or even lower back pain. In severe cases, sometimes one cannot straighten their back and can only walk hunched, supporting their abdomen.The testicular distension and pain caused by intimacy is a physiological phenomenon, not a sign of any disease. After the sexual stimulus ceases, the secretions are gradually absorbed and partially excreted through the urethra, and the pain gradually subsides without leaving any aftereffects. Therefore, if this occurs, no special treatment is needed—the key is to immediately stop intimate actions or divert attention.