A Sore on My Penis Won’t Heal — Could It Be Penile Cancer?
A sore on the penis can be worrying, particularly when it does not seem to be healing. Infection, inflammation, irritation and skin conditions are much more common explanations than penile cancer. However, a persistent penile sore, ulcer or abnormal area of skin should be examined rather than repeatedly treated or ignored.
Penile cancer is uncommon, but it does not always begin as an obvious lump. It may initially look like a small ulcer, persistent red area, thickened patch or change beneath the foreskin. Current European Association of Urology (EAU) guidelines note that penile cancers can have quite different appearances, including raised or ulcerated lesions.[1]
The important message is not to assume that a sore is cancer — but also not to assume that it cannot be.
What does penile cancer look like?
There is no single appearance that confirms penile cancer.
Possible changes can include a sore or ulcer that does not heal, persistent redness, an area that repeatedly crusts or bleeds, a thickened area of skin, a new lump or growth, an abnormal area on the glans or foreskin, or discharge or bleeding beneath a tight foreskin.[1-3]
Some early penile cancers and precancerous changes can look surprisingly similar to eczema, balanitis or another inflammatory skin condition. In one study of men with penile cancer, redness, rash and eczema-like changes were among the most commonly reported early symptoms.[6]
If you would like more information about the condition itself, see Penile Cancer: Symptoms, Diagnosis and Treatment or the broader Penile & Testicular Cancer service page.
Does a sore that won’t heal mean I have cancer?
No.
Many penile sores have causes other than cancer. These can include friction or trauma, fungal or bacterial inflammation, sexually transmitted infections, dermatitis and inflammatory skin conditions such as lichen sclerosus.
The problem is that appearance alone is not always enough to determine the cause.
A lesion that initially appears inflammatory may require reassessment if it persists, changes, becomes thickened, bleeds or does not respond as expected to treatment. This is particularly important if the diagnosis has never been clearly established.
Lichen sclerosus deserves particular attention because it can cause white patches, cracking, foreskin tightening and chronic inflammation. It is also associated with penile squamous neoplasia, although most men with lichen sclerosus do not develop penile cancer.[4,5] You can read more about male genital lichen sclerosus and penile scarring.
Why can penile cancer be missed?
Penile cancer is rare, and its early appearance can overlap with much more common benign conditions.
There is also another important reason: embarrassment.
Research examining men diagnosed with penile cancer has found that some delay seeking medical attention because of embarrassment about showing someone a genital problem.[6] Other studies have similarly reported substantial delays between first noticing a penile lesion and seeking specialist care.[6]
For a urologist, examining the penis, foreskin and scrotum is a routine part of clinical practice. A persistent penile lesion is a medical problem and can be assessed professionally and discreetly.
When should I have a penile sore checked?
There is no need to panic about every spot, graze or area of irritation.
However, it is sensible to arrange medical assessment when a sore is not healing as expected, keeps returning, becomes larger or thicker, bleeds without a clear reason, produces persistent discharge, develops beneath a tight foreskin, or is associated with a new lump in the groin.
A lesion that has already been treated as an infection or inflammatory condition but continues to persist also deserves reassessment.
This is particularly relevant in men with significant phimosis, chronic inflammation or lichen sclerosus because an abnormality can sometimes be partly hidden beneath the foreskin.[1,5]
What happens when a penile sore is examined?
The first consultation usually begins with questions about how long the lesion has been present, whether it is changing, whether there has been bleeding or discharge, previous treatments, foreskin problems, previous genital skin disease and other relevant medical history.
The penis is then examined carefully. Where possible, the glans, foreskin, penile shaft and urethral opening are inspected, and the lesion is assessed for its size, location, surface appearance and whether deeper tissues may be involved.
The groins may also be examined for enlarged lymph nodes if penile cancer is a clinical possibility. Current EAU guidelines recommend examination of both the penis and groins as part of the initial assessment of suspected penile cancer.[1]
For many patients, this examination provides much more useful information than trying to diagnose the problem from photographs or internet searches alone.
Will I need a biopsy?
Not every penile sore requires a biopsy.
If the diagnosis remains uncertain, however, a small biopsy may be the most reliable way to determine what the lesion actually is.
A biopsy removes a small piece of tissue that is examined under a microscope by a pathologist. Depending on the lesion, this may be performed using a small punch biopsy, an incisional biopsy or complete excision of a small abnormality.
Current EAU guidelines recommend obtaining a biopsy when there is uncertainty about the nature of a penile lesion and before certain non-surgical treatments for penile cancer are considered.[1] Adequate biopsy depth can also be important when determining whether an abnormality is superficial or invasive.[1]
A biopsy does not mean that cancer has already been diagnosed. Its purpose is to establish the diagnosis.
What if the biopsy does show penile cancer?
The next step depends on the type of tumour, how deeply it extends, where it is located and whether there is any concern about lymph-node involvement.
An important change in modern penile cancer surgery is the increasing use of penile-preserving approaches where they are oncologically appropriate. Depending on the individual tumour, management may include circumcision, local excision, glans resurfacing, glansectomy with reconstruction or other surgery.[1-3,7]
More extensive surgery is still necessary for some cancers, so treatment cannot be determined simply from the appearance of the lesion.
The goal is to achieve appropriate cancer control while preserving penile tissue, urinary function and sexual function where this can be done safely. Current international guidelines specifically emphasise balancing complete tumour treatment with organ preservation.[1-3]
Does finding it earlier matter?
Earlier assessment can make diagnosis and treatment planning more straightforward.
Penile cancers that remain localised may be suitable for a wider range of penile-preserving approaches than more extensive disease, although the appropriate operation depends on the individual tumour.[1,7]
Published research has repeatedly identified delayed presentation as an issue in penile cancer, with embarrassment and the apparently harmless appearance of early lesions contributing to some delays.[6]
This does not mean that having a sore for a certain number of weeks tells you whether you have cancer. It simply means that a lesion that is persisting or changing deserves a proper diagnosis rather than indefinite observation.
I’m embarrassed about having it examined
This is extremely common.
You do not need to shave, photograph the lesion or diagnose it yourself before attending. You also do not need to know whether the problem belongs with dermatology, sexual health or urology before asking for medical advice.
If the abnormality is persistent, examination can help determine whether it appears infectious, inflammatory, dermatological, precancerous or potentially malignant and whether a biopsy or another investigation is appropriate.
For complex penile skin disease, scarring or previous surgery, further information is available through Penile, Genital & Urinary Reconstruction.
Take home message
A penile sore that will not heal does not automatically mean penile cancer.
Nevertheless, penile cancer can sometimes begin as a relatively subtle ulcer, red area or persistent skin change. Because cancer, infection and inflammatory penile conditions can overlap in appearance, persistent lesions are best assessed clinically rather than diagnosed from photographs or online information alone.
If you have noticed a persistent penile sore, ulcer, unexplained bleeding, growth or other changing lesion, an individual assessment can help establish what it is and whether further investigation is required.
Request an appointment for assessment
References
European Association of Urology. EAU-ASCO Penile Cancer Guidelines. Edn presented at the EAU Annual Congress London 2026. Arnhem, The Netherlands: EAU Guidelines Office; 2026.
Brouwer OR, Albersen M, Parnham A, Protzel C, Pettaway CA, Ayres B, et al. European Association of Urology-American Society of Clinical Oncology collaborative guideline on penile cancer: 2023 update. Eur Urol. 2023;83(6):548-560. doi:10.1016/j.eururo.2023.02.027.
Muneer A, Bandini M, Compérat E, De Meerleer G, Fizazi K, Gietema J, et al. Penile cancer: ESMO-EURACAN Clinical Practice Guideline for diagnosis, treatment and follow-up. ESMO Open. 2024;9(7):103481. doi:10.1016/j.esmoop.2024.103481.
Mannam G, Miller JW, Johnson JS, Gullapalli K, Fazili A, Spiess PE, et al. HPV and penile cancer: epidemiology, risk factors, and clinical insights. Pathogens. 2024;13(9):809. doi:10.3390/pathogens13090809.
Douglawi A, Masterson TA. Penile cancer epidemiology and risk factors: a contemporary review. Curr Opin Urol. 2019;29(2):145-149. doi:10.1097/MOU.0000000000000581.
Skeppner E, Andersson SO, Johansson JE, Windahl T. Initial symptoms and delay in patients with penile carcinoma. Scand J Urol Nephrol. 2012;46(5):319-325. doi:10.3109/00365599.2012.677473.
Fallara G, Basile G, Poterek A, Tozzi M, Pang KH, Çakir OO, et al. Oncological and functional outcomes of penile shaft sparing surgery for localised penile cancer: a systematic review. Eur Urol Focus. 2025;11(1):46-61. doi:10.1016/j.euf.2024.05.004.
Medical disclaimer
This article provides general educational information only and does not provide individual medical advice, diagnosis or treatment. A penile sore or skin change cannot be reliably diagnosed from written information or photographs alone. If you have a persistent, worsening or otherwise concerning penile lesion, arrange assessment with an appropriately qualified healthcare professional. Seek urgent medical care if you are acutely unwell, have rapidly worsening swelling or infection, significant uncontrolled bleeding, severe pain or difficulty passing urine.
