Testicular cancer

Also called Cancer of the testicle, Seminoma, or Germ cell tumour

Testicular cancer is cancer in one of the testicles. It is one of the less common cancers and mostly affects men aged 15 to 49. The most common sign is a painless lump or swelling in a testicle. Having had an undescended testicle or a family history raises the risk.

Last updated Nov 9, 2026

What it is

It is very treatable, and most men are cured, even if it has spread.

Treatment usually starts with surgery to remove the affected testicle, sometimes followed by chemotherapy or radiotherapy. Sperm banking may be offered before treatment.

Common signs

  • A painless lump or swelling in a testicle
  • A change in the shape or feel of a testicle
  • A heavy feeling in the scrotum
  • A dull ache in the testicle or lower tummy

How it is usually diagnosed

  • Examination
  • Ultrasound scan of the testicles
  • Blood tests for tumour markers (AFP, HCG, LDH)
  • CT scan

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Ultrasound and CT reports
  • Tumour marker results over time
  • Pathology reports
  • Oncology letters
  • Follow-up schedule

Questions to ask your doctor

  • What type and stage is it?
  • Will I need treatment after surgery?
  • How will this affect fertility?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Sudden, severe pain in a testicle: call 112, as this may be a twisted testicle

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

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