When should I consider referring a patient with a varicocele for surgical intervention?

Guideline-aligned answer with reasoning, red flags and references. Clinically reviewed by Dr Kola Tytler MBBS CertHE MBA MRCGP.

Posted: 17 August 2025Updated: 17 August 2025 Guideline-Aligned (High Confidence) Clinically Reviewed
Dr Kola Tytler MBBS CertHE MBA MRCGPClinical Lead • iatroX

You should consider referring a patient with a varicocele for surgical intervention based on specific criteria, which differ for adolescents and adult men, and also include urgent referral indications .

  • Urgent Referral:
    • Refer urgently to a urologist if a varicocele appears suddenly and is painful .
    • Also refer urgently if the varicocele does not drain when lying down .
  • Adolescents (from age 10 years onwards):
    • Refer to a urologist for possible surgery if they have a Grade II or III varicocele and asymmetrical testes .
    • The primary indication for surgery in adolescents is testicular growth arrest .
    • Refer if there are concerns about reduced ipsilateral testicular volume .
    • Refer if the boy or parents/guardians are concerned by the appearance or symptoms and cannot be fully reassured in primary care .
  • Adult Men:
    • Refer to a urologist for possible surgery if they have a Grade II or III symptomatic varicocele .
    • Refer to a urologist for possible surgery if they have a Grade II or III varicocele with abnormal semen parameters .
    • Do not routinely refer the male partner of an infertile couple for varicocele surgery solely as a form of fertility treatment, as NICE and the Royal College of Surgeons do not recommend it for this purpose alone ,.
    • However, consider seeking specialist advice from a urologist or fertility specialist for men with a clinical varicocele, abnormal semen parameters, and otherwise unexplained infertility, especially if the female partner has good ovarian reserve .
    • Refer routinely to a urologist if there is pain or discomfort .

Educational content only. Always verify information and use clinical judgement.