| Summary: | Inguinal hernia repairs represent one of the most common general surgery operations worldwide. Advances in the understanding of groin anatomy, operative technique, and prosthetics have improved the efficacy of these repairs with overall low recurrence rates and favorable outcomes. Chronic postherniorrhaphy inguinal pain has arguably become the most important and most frequent complication of inguinal hernia repair, with significant impact on patients' quality of life. Neuropathic inguinodynia may be caused by direct nerve injury, manipulation, entrapment, scarring, and interaction with mesh. Development of chronic postinguinal hernia repair pain is independent of the method of hernia repair as all inguinal hernia repair techniques may potentially cause injury. Understanding the neuroanatomy of the inguinal canal and the potential mechanisms for injury leads to lower rates of nerve injury and chronic pain and helps to guide prevention and treatment of inguinodynia. In this article, the neuroanatomy of the anterior inguinal canal and the prevention of nerve injury are addressed.
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