What does a testicular lump feel like with testicular cancer?

A cancerous lump may be painless and feel different from the surrounding testicular tissue. Some people notice heaviness, aching, swelling, or a change in the size or shape of one testicle. These features can overlap with non-cancerous causes, so the feel of a lump cannot confirm or exclude cancer.

A lump may be inside the testicle or in nearby structures such as the epididymis, the soft tube behind the testicle. Cysts, inflammation, infection, fluid around the testicle, and enlarged veins can also cause a swelling or unusual area. A lump that feels separate from the testicle may have a different cause from one that is part of the testicle itself.

A clinician will compare both sides and ask when the change began, whether it is painful, and whether you have symptoms such as fever or urinary discomfort. An ultrasound can show whether the finding is within the testicle and whether it is solid or fluid-filled.

Arrange a medical appointment promptly for any new lump, enlargement, change in firmness, or persistent difference between the testicles. Do not repeatedly squeeze or press the area, because this can increase soreness without providing a diagnosis. Note when you first noticed it and whether its size, position, or discomfort changes.

A healthcare professional may examine the scrotum while standing and lying down, then arrange an ultrasound or referral. Do not rely on pain as a guide: testicular cancer can present without pain, while painful swelling can have several other causes.

Seek emergency care immediately for sudden, severe testicular pain, rapid swelling, nausea or vomiting, or a testicle that appears higher or sits at an unusual angle. These signs can occur with testicular torsion, when the blood supply is twisted, and treatment should not wait for a routine appointment.

For a painless or slowly noticed lump without these emergency signs, contact a clinician promptly rather than waiting for it to disappear. Early assessment helps distinguish a testicular mass from problems affecting the surrounding tissues.

You could ask: Is the lump within the testicle or beside it? Do I need an ultrasound? Could infection or another non-cancerous condition explain the finding? What changes should lead me to seek emergency care?