How common is new lump or swelling in penile cancer?

Penile cancer may appear as a persistent lump, thickened area, ulcer, or change in the skin of the penis. Swelling can affect the head, foreskin, shaft, or nearby groin lymph nodes. Some changes cause soreness, bleeding, discharge, irritation, or difficulty retracting the foreskin; others are noticed without pain. Inflammation, infection, injury, or a skin condition can look similar. Appearance and touch cannot confirm the cause, so a change that does not settle deserves a clinical examination.

Arrange an appointment with a doctor or sexual-health clinician for a new lump or swelling that persists, enlarges, bleeds, ulcerates, or has no clear explanation. Before the visit, note when it began, whether it changes, and any pain, discharge, bleeding, smell, fever, or urinary difficulty. Mention recent sexual exposure, injury, procedures, or skin irritation when relevant; these details help the clinician consider the full range of causes. Do not squeeze, cut, or repeatedly rub the area.

Seek prompt medical care for uncontrolled bleeding, severe pain, rapidly increasing swelling, inability to pass urine, or a penis or foreskin that becomes trapped in a swollen position. A spreading red or hot area, fever, or feeling acutely unwell can also need same-day attention because infection or another urgent problem may be present. These warning signs do not prove cancer, but delaying examination can allow a treatable problem to worsen.

Ask what examination is needed, whether the change could be inflammatory or infectious, and how soon it should be reviewed. You can ask whether a biopsy, swab, urine test, or imaging is appropriate; what symptoms should prompt urgent help; and how to protect the area from further irritation while waiting. If embarrassment makes the appointment difficult, remember that clinicians assess genital skin changes routinely and can explain each step before proceeding.