Wounds on the penis

Penile ulcers can cause concern and uncertainty, but you’re not alone and there is always a solution. In this article, you’ll get a quick overview of the most common causes of penile sores – from irritation, infections and skin diseases to more rare but important conditions. I’ll guide you on when to seek emergency help, how to examine and treat them, and what you can do to promote healing and comfort. As you read on, you’ll gain concrete advice and insights that can give you peace of mind and empowerment – and you’ll learn how my specialized treatment can help you move forward safely.

Penile wounds are often caused by irritation, infections or skin diseases and should be assessed, especially if they do not heal. Quick clarification and targeted treatment provide the best and most lasting effect.

Picture of Michael Strøm
Michael Strøm

International speaker & expert in shockwave and EMTT treatment for erectile dysfunction, peyronies & CPPPS.

Penile ulcers – causes, examination and safe help without taboos

Are you experiencing penile sores – perhaps small cracks, blisters, soreness or open sores – and are you experiencing erectile dysfunction, pelvic pain or uncertainty about what it is? You are far from alone. I meet many men who go too long with discomfort, shame and doubt. At my clinic in Copenhagen, I can help you move forward confidently and professionally: from concern to clarification and a plan that makes sense for you and your everyday life.

What is “penis sores” – and how does it feel?

Sores, cuts, blisters and rashes: they can look different

Sores on the penis can cover several things. It can be:

  • Small cuts or cracks in the skin (often due to friction, dryness or tight foreskin)
  • Blisters that burst and turn into open sores (typical with herpes)
  • Round, hard ulcer without pain (may indicate early-stage syphilis)
  • Redness and irritation on the glans/ foreskin (balanitis – inflammation of the penile skin)
  • Long-lasting, non-healing ulcers or thickenings (requires assessment to rule out penile cancer)

Some feel burning and pain, others feel almost nothing. Therefore, a wound should not be dismissed just because it doesn’t hurt. The appearance can also change from day to day – this is normal with herpes outbreaks or eczema, for example.

Consequential symptoms of penile ulcers

Other signs can be:

  • Pain when urinating
  • Swollen lymph nodes in the groin
  • Fever, general malaise
  • Discharge from the urethra
  • Erectile pain or worsening of erectile dysfunction

It can feel overwhelming – especially if you’re already struggling with performance pressure, pelvic pain or concerns about your sexuality. I meet you without prejudice, create an overview and help you step by step.

Common causes of penile ulcers

Mechanical causes: friction, dryness and irritation

Prolonged or intensive sex/ masturbation, insufficient lubricant, dry skin or a tight foreskin can cause small cracks and sores on the penis. Also, severe pelvic floor tension (often with chronic pelvic pain/CPPS) can change the way you move and have sex, making the skin more easily irritated. The solution here is often gentle wound care, good moisturizer/lubricant and addressing the underlying cause, such as an overactive pelvic floor. Choose a lube that matches the condom (water- or silicone-based) and avoid products with perfumes that can further irritate.

Infections and STDs

  • Herpes genitalis: Small painful blisters that burst and turn into sores. Can recur in outbreaks.
  • Syphilis: A single, usually painless, hard sore (chancre) that can be discreet. Requires blood test and treatment.
  • Bacterial balanitis: Redness, soreness and ulceration, often in men with foreskin, especially with poor ventilation/humidity.
  • Fungus (Candida): Redness, burning, peeling and small fissures (cracks).
  • Others: Molluscum contagiosum (small pearl-like bumps), scabies or other rarer infections.

Infections require a targeted assessment – some are treated with cream, others with tablets. Suspected STIs should always be taken seriously and tested to ensure you receive proper treatment and avoid infection.

Skin diseases and immune-related conditions

  • Psoriasis: Red, well-defined areas, sometimes with cracks.
  • Lichen sclerosus: The skin becomes thin and delicate; can cause white areas, itching and ulceration and eventually narrowing of the foreskin.
  • Eczema/contact dermatitis: Irritation after soap, perfume, latex etc.
  • Zoon balanitis (plasma cell balanitis): Chronic irritation on the glans in men with foreskin.

These conditions require calm, consistent skin care and often prescription treatment. A correct diagnosis is essential so you don’t exacerbate symptoms with unsuitable creams.

Systemic factors and your overall health

  • Diabetes and reduced blood flow can inhibit wound healing.
  • Prolonged stress and poor sleep can exacerbate skin problems and pain perception.
  • Medications (e.g. certain antibiotics, blood thinners, retinoids) can alter the skin’s response.
  • Smoking can slow healing.

When it’s serious: suspected penile cancer

Long-lasting, hard or bleeding wounds that don’t heal within 3-4 weeks or wounds with a thickened, uneven edge should be assessed. It’s rarely cancer, but it should be taken seriously and thoroughly investigated to give you peace of mind and the right plan.

When are penile ulcers acute?

Red flags – seek quick assessment

Contact emergency help if you experience:

  • Rapidly increasing pain, swelling or fever
  • Pain in the penis along with black/blue discoloration or smelly discharge
  • Difficulty urinating or urinary retention
  • Wounds that bleed heavily or do not heal in 3-4 weeks
  • Pronounced, painful blisters with general malaise

Sex, breaks and infection risk

If you have a penile wound, you should generally take a break from sex until the cause is clarified and the wound has healed – both for healing and to avoid infection. Condoms reduce the risk, but don’t always cover the entire area, and oral sex can also be contagious. A clear message and a plan gives peace of mind.

How to examine and assess penile ulcers

Calm conversation and gentle examination

I start by hearing your story: when did it start, what does it look like, does it hurt, and are there any other symptoms? I also talk to you about your sex life, skincare, any erectile dysfunction, pelvic pain and lifestyle. I examine the area gently and respectfully and assess what is most likely to be the cause. If you have pictures from previous days, they can help you understand the process.

What I can examine in the clinic

In addition to the clinical assessment, if applicable, I can use ultrasound to assess blood flow and connective tissue in the penis. This is especially useful if you are also experiencing erectile dysfunction, Peyronie’s disease (curvature/kinking) or pain where tissue changes and scar tissue may play a role. The aim is to get a complete picture so I can target your plan.

When tests are needed at your GP

If you suspect infection or a skin disease that requires laboratory testing, I advise you to talk to your doctor about relevant tests: swabs from the wound, blood tests for syphilis and HIV, PCR test for herpes or culture for bacteria/fungi. This way you get a quick, correct diagnosis and treatment, while I help you with the big picture and any related issues such as pain, erectile function and lifestyle factors.

Treating penile ulcers – always look for the cause

Gentle self-care and wound care

Whatever the reason, some simple principles apply:

  • Keep the area clean and dry: rinse with lukewarm water, avoid strong soap and perfume.
  • Use a mild, unscented moisturizer on dry skin areas around the wound (not directly in open wounds).
  • Avoid friction, tight underwear and activity that irritates the wound.
  • Pause sex until the wound has healed and the cause has been determined.
  • Consider pain relief such as paracetamol/ibuprofen if you can tolerate it.

Antibiotics, antifungals or antivirals are only given when there are clear signs of infection and after proper diagnosis. Here I guide you to the next steps so you don’t fumble around and make the symptoms worse.

When ulcers are linked to erectile dysfunction, pain or a tense pelvic floor

Many men experience penile ulcers recurring because there is an underlying challenge: pelvic pain, overactive pelvic floor, performance pressure, Peyronie’s disease or erectile dysfunction that changes the way you have sex. Here, my core competence is to target the cause:

  • Neuromodulation: Gentle stimulation techniques that can reduce nerve irritation, relax muscles, and reduce pain in chronic pelvic pain (including impact on the pudendal nerve).
  • EMTT (electromagnetic transduction therapy): A non-invasive method I use for muscle and connective tissue disorders and pelvic pain to support tissue tolerance and function.
  • Focused sound waves (shockwave): Used in the clinic for erectile dysfunction and Peyronie’s disease to affect blood flow and connective tissue. It is not a treatment for ulcers per se, but can be part of the solution if ulceration is associated with these conditions.

I always add specific advice on lube, sex positions, pace and breaks to give your skin a rest – without interrupting your sex life.

Skin and infection treatment – the safe way

If I assess that you need a prescription cream or tablets, I will guide you to get the relevant tests and treatment from your GP. You get clear recommendations so you know exactly what to say and ask. In my experience, the combination of clarification, targeted medical treatment and focus on your overall well-being is the best and most lasting effect.

Lifestyle, sleep and daily habits matter more than you think

Good sleep, lower stress, quitting smoking, stable blood sugar levels and gentle skin care make a tangible difference to healing. I help you with realistic habits that fit into your everyday life. If you have a partner, we can also talk about communication, breaks and expectations to ease the pressure and calm your body.

Frequently asked questions about penile ulcers

Are penile ulcers always an STD?

Non-infectious. Friction, dryness, eczema or lichen sclerosus are frequent non-infectious causes. But because herpes and syphilis can also cause ulcers, testing is relevant if there is the slightest doubt.

Is it contagious – and should my partner be tested?

If you suspect infection (especially herpes or syphilis) you should take a break from sex and talk openly with your partner. A condom reduces infection but does not always protect the entire affected area. Testing is a good idea for both of you if suspected.

Can I just use an over-the-counter cream?

Be careful. Steroids can worsen infection and antifungal cream won’t help with herpes or bacteria. Start with gentle wound care and get an assessment to avoid applying blindly.

How long can I wait?

If the wound is mild and clearly caused by friction, you can wait 7-10 days with gentle care and a break from sex. If there are signs of infection, severe pain or if the wound is not healing, you should seek assessment sooner.

What if it keeps coming back?

Repeated sores point to an underlying cause: skin disease, herpes outbreaks, dryness/irritation, tight foreskin or a sexual pattern characterized by pain and pelvic floor tension. Here I help you with a comprehensive plan so you don’t keep starting from scratch.

Can penile ulcers cause erectile dysfunction?

Yes, pain and worry affect erections. At the same time, erectile dysfunction can lead to more friction and compensation – a vicious cycle. I help you with both: the body, the nerves and the mental strategies to regain control and confidence.

What about condoms and lube?

Choose a quality condom that fits in size and use plenty of lube (water or silicone-based, unscented). Avoid products with strong perfumes. If allergic to latex – use latex-free condoms.

What if I am circumcised/not circumcised?

Men with foreskins can easily get moisture and irritation under the foreskin (balanitis). Good hygiene without exaggeration and thorough drying after bathing helps. Circumcised men may experience more dry skin – gentle moisturizing is important here.

Can stress and sleep affect skin and healing?

Yes, you can. Stress and sleep deprivation suppress the immune system, increase pain sensitivity and prolong healing time. Small, consistent habits around sleep and resting your body make a real difference.

How I help you – confidently, respectfully and purposefully

Penile ulcers are vulnerable – and can feel all too private. I work at eye level and without taboo. My goal is simple: to give you clarity and a plan that works in your reality.

  • Professional assessment of penile ulcers and related symptoms
  • Advanced diagnostics when needed, including ultrasound for blood flow and connective tissue
  • Treating underlying issues such as erectile dysfunction, Peyronie’s diseaseand chronic pelvic pain with neuromodulation, EMTT and focused sound waves
  • Specific advice on wound care, sex breaks, lube and skin protection
  • Guidance for relevant tests and medical treatment with your GP when needed
  • Sleep, stress and lifestyle advice – what makes the difference in everyday life

I have clients from all over Denmark, especially Copenhagen and Zealand. You get discreet, respectful help and a structured plan from the first visit.

Take the first step today

If you have a penis sore – whether you think “it’s probably just friction” or fear an STD – let’s have a professional, safe chat. I’ll help you determine the cause, stop the discomfort and prevent it from coming back. Book an appointment or contact me to find out how I can help you move forward. The sooner we get started, the sooner you can get your body and mind back in order.

If you are interested in hearing more about how I can help you, you are always welcome to contact me by phone 41 40 08 58 or email michael@msinsight.dk. I’ll get back to you quickly with a customized proposal so we can find the best way forward together.

Picture of Are you in doubt? Get clarity on your options
Are you in doubt? Get clarity on your options

I will get back to you within 12-24 hours.

Get a no-obligation clarifying conversation today

Are you unsure about what’s causing your symptoms, or whether a specialized treatment program at our clinic in Copenhagen would be right for you? If so, you can start with a brief, confidential consultation. During this consultation, we’ll assess whether your symptoms align with the areas I specialize in at MS Insight and determine what the next appropriate step might be.

The clarifying conversation is not a full consultation, diagnosis or treatment plan. It’s for those who want a serious assessment of whether it makes sense to proceed with a more thorough examination, ultrasound scan and individual plan.