Chronic pain syndrome is a recognized complication following vasectomy, occurring due to ongoing inflammation, nerve entrapment, or sperm granuloma formation after the procedure. This can lead to persistent scrotal or testicular pain lasting beyond the expected healing period. Unlike other acute postoperative issues, chronic pain syndrome is challenging to treat and may significantly impact quality of life. Testicular torsion, epididymitis, and hydrocele are not typical direct complications of vasectomy. Proper surgical technique aims to minimize nerve and tissue trauma to reduce this risk.

Reference: Campbell-Walsh Urology, 12th Edition.