Urinary & Sexual Health

Testicular Pain (Epididymitis): UK Online Doctor Guide

5 min readLast reviewed 24 April 2026

Educational information — not medical advice.

This article was prepared by the OnlineDoctor24 editorial team and reviewed for factual accuracy against UK clinical guidance (NHS and NICE). It is not written by a doctor and does not replace personal medical advice. For symptoms specific to you, book an online doctor consultation.

Key points

  • Testicular pain has many causes — some are emergencies.
  • Sudden severe pain in a young man may be testicular torsion — A&E immediately.
  • Epididymitis is infection of the tube behind the testicle, often bacterial.
  • Antibiotics treat most cases of epididymitis.
  • An online GP can advise on next steps.

Causes

  • Testicular torsion — twisted testicle, sudden severe pain. Surgical emergency.
  • Epididymitis — bacterial infection (often UTI bacteria, sometimes STI).
  • Hydrocele/varicocele — fluid or varicose veins.
  • Trauma.
  • Testicular cancer — usually painless lump.

When to act fast

Sudden severe testicular pain — especially in young men — needs A&E within hours to save the testicle. Do not wait for an appointment.

Treatment of epididymitis

  • Antibiotics — choice depends on likely cause (e.g. ofloxacin for STI-related, or trimethoprim for UTI-related).
  • Pain relief, scrotal support, ice packs.
  • Recovery often takes weeks.

Red flags — when to seek urgent help

Call 999 or go to A&E if you experience any of the following:

  • Sudden severe testicular pain (possible torsion — A&E NOW)
  • Painless testicular lump (possible cancer — urgent referral)
  • Fever and severe symptoms

Frequently asked questions

Common questions UK patients ask about epididymo-orchitis.

How an online doctor can help

This article is for general information only and does not replace personal medical advice from a qualified doctor. Content is reviewed against UK NHS and NICE guidance by the OnlineDoctor24 editorial team and is not authored by a medical doctor. If your symptoms worsen or you are unsure, please book a consultation with a GMC-registered GP.

See a UK GP about this today

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