Your spermatic cord carries blood to and from your testicles. It's not certain what causes varicoceles, but many experts believe a varicocele forms when the valves inside the veins in the cord prevent your blood from flowing properly. The resulting backup causes the veins to widen (dilate). This may then result in damage to the testicle and result in worsened fertility.
Varicoceles often form during puberty. Varicoceles usually occur on the left side, most likely because of the position of the left testicular vein. However, a varicocele in one testicle can affect sperm production in both testicles.
Jul. 02, 2014
- Mohammed A, et al. Testicular varicocele: An overview. Urology International. 2009;82:373.
- Varicoceles. American Urological Association Foundation. http://www.urologyhealth.org/urology/index.cfm?article=116. Accessed Mar. 30, 2014.
- Khera M, et al. Evolving approach to the varicocele. Urologic Clinics of North America. 2008;35:183.
- Robinson SP, et al. Treatment strategy for the adolescent varicocele. Urologic Clinics of North America. 2010;37:269.
- Wampler SM, et al. Common scrotal and testicular problems. Primary Care Clinics in Office Practice. 2010;37:613.
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