Genital Ulcers: Causes, Symptoms, and Treatment Guide
Updated: 2 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer
Genital ulcers are open sores in the genital region, most commonly caused by STIs such as herpes, syphilis or chancroid, though Crohn's disease, contact dermatitis or injury can also cause them [1]. Doctors diagnose them with an exam and blood or swab tests. Treatment depends on the cause and often involves antibiotics, antivirals or steroid creams [1]. Safe sex reduces risk.
What the research says
Looking at an ulcer is often not enough to know what caused it, so lab testing matters. In a systematic review and meta-analysis that included 29 studies, diagnosing genital ulcer disease by clinical appearance alone detected herpes with a pooled sensitivity of 43.5% (95% CI 26.2–62.4) and syphilis with 52.8% (95% CI 23.0–80.7) when compared with molecular testing, meaning many cases were missed (Loh et al., Front Med, 2022) [2].
Some genital ulcers are not infections at all, and treating the underlying disease can clear them. In a meta-analysis of 8 studies in Behçet's disease, a non-infectious inflammatory condition, patients treated with apremilast for 12 weeks had higher odds of being free of genital ulcers (OR 4.56; 95% CI 2.47–8.44) (Iizuka et al., Mod Rheumatol, 2022) [3].
What Are Genital Ulcers?
A genital ulcer is a persistent sore that forms on the sensitive skin of the genital or anal area [1]. These wounds often develop when viruses or bacteria irritate the skin, triggering an immune response that leads to inflammation and tissue breakdown. Because the genital region is frequently exposed to bacteria, these ulcers can be difficult to heal without proper medical care.
Contagious vs. Non-Contagious Ulcers
It is important to distinguish between ulcers that can be spread to others and those that stay with the individual. STI-related ulcers are contagious and can be transmitted through sexual contact [1]. In contrast, ulcers caused by systemic inflammatory diseases, allergic reactions, or physical injuries are not contagious and do not put sexual partners at risk [1].
Symptoms and Clinical Presentation
The appearance and feel of genital ulcers can vary considerably depending on the underlying cause and the stage of the sore.
Early and Advanced Signs
In the early stages, ulcers may look like small, inconspicuous bumps or a localized rash. As the condition progresses, these bumps can break open and form shallow or deep wounds that may ooze pus or clear fluid [1]. Many people also have swollen lymph nodes in the groin as the body fights the irritation or infection.
Common Physical Sensations
Pain and Discomfort: Many ulcers are painful, particularly during sexual activity or urination [1].
Itching and Burning: A persistent stinging or itchy sensation around the affected area [1].
Systemic Symptoms: Some people develop a fever or a general feeling of being unwell if the ulcers are related to a systemic infection.
Unusual Discharge: Foul-smelling vaginal or penile discharge may accompany the sores.
Identifying the Causes
STIs are the leading cause of genital ulcers, but several other medical conditions and environmental factors can also lead to them [1].
Cause Category | Specific Examples | Contagious? |
STIs | Syphilis, genital herpes, chancroid, HIV [1] | Yes |
Inflammatory | Behçet's disease, Crohn's disease [1] | No |
Autoimmune | Pemphigus, bullous pemphigoid [1] | No |
Skin Conditions | Contact dermatitis, lichen planus [1] | No |
Physical / Other | Friction from clothing, aggressive sex, allergic reactions [1] | No |
Diagnosis and Medical Evaluation
Because genital ulcers have many possible causes, a thorough medical evaluation is needed to make sure the correct treatment is prescribed.
The Diagnostic Process
Healthcare providers typically begin with a detailed review of your medical history and lifestyle, including recent sexual activity [1]. A physical examination follows, focusing on the appearance of the ulcers and the condition of the surrounding skin and pelvic lymph nodes. To confirm the diagnosis, doctors may order lab tests such as:
Vaginal or Penile Swabs: To check for viral or bacterial pathogens.
Blood Tests: To screen for systemic infections such as syphilis or HIV.
Urinalysis: To rule out urinary tract involvement.
Biopsy: In some cases, a small tissue sample is taken to rule out rare inflammatory or autoimmune diseases.
Management and Treatment Strategies
The main goal of treatment is to address the underlying cause while managing pain and helping the skin heal quickly.
Medical Interventions
Medications: Antibiotics are prescribed for bacterial infections such as chancroid or syphilis, while antivirals are used for herpes or other viral causes.
Topical Treatments: For non-infectious causes such as lichen planus or Behçet's disease, steroid ointments may be applied to the sores to reduce inflammation.
Specialist Care: For ulcers that do not respond to standard treatment, a dermatologist or an infectious disease specialist may be consulted for advanced testing.
Self-Care and Comfort Measures
While waiting for medical treatment to take effect, several home-care methods can provide significant relief:
Sitz Baths: Soaking the hips in warm water for 15 to 30 minutes several times a day can soothe irritation [1].
Compresses: Warm washcloths help with pain and itching, while cool compresses can reduce swelling [1].
Pain Management: Over-the-counter oral pain relievers or topical lidocaine may be recommended by a provider [1].
Prevention and Risk Reduction
Reducing the risk of genital ulcers combines safe lifestyle practices with proactive health management.
Key Prevention Steps
Practice Safe Sex: Consistent use of condoms or dental dams and limiting the number of sexual partners significantly lowers the risk of STI-related ulcers [1].
Maintain Hygiene: Washing the genital area daily with mild, fragrance-free soap helps prevent bacterial buildup.
Wear Proper Clothing: Avoiding overly tight pants or synthetic underwear reduces friction and irritation.
Manage Health Conditions: Staying current with treatment for inflammatory or autoimmune diseases can prevent secondary ulcers [1].
Outlook and Recovery
With the correct diagnosis and treatment, most people with genital ulcers recover within one to two weeks. It is important to complete the full course of any prescribed medication, even if symptoms improve quickly. Because ulcers can come back, especially if the underlying cause is a chronic condition or a new STI is contracted [1], ongoing vigilance and safe health practices are essential for long-term genital health.
When to Seek Medical Care
If you notice any new sores, rashes, or painful bumps in your genital area, do not delay seeking medical care. Contact your healthcare provider or a local sexual health clinic for a confidential evaluation and to start your path toward healing.
Frequently Asked Questions
Can genital ulcers heal on their own?
Some mild ulcers caused by minor trauma or irritation may heal on their own, but those caused by infections or systemic diseases usually need medical treatment to resolve and to prevent complications.
Are all genital ulcers caused by STIs?
No. STIs are a common cause, but many ulcers result from non-infectious factors such as Crohn's disease, allergic reactions to soap, or physical injury.
How long does it take for a genital ulcer to heal with treatment?
Most people see significant improvement within a few days of starting the right medication, with full healing typically occurring within one to two weeks.
Can I get genital ulcers from my laundry detergent?
Yes. Contact dermatitis caused by fragrances or dyes in laundry products can irritate the skin and eventually lead to small sores or ulcers.
What should I do if my partner has a genital ulcer?
Avoid sexual contact until your partner has been evaluated by a healthcare provider and has a diagnosis, because many causes are contagious.
Is a biopsy always necessary for diagnosis?
No. Biopsies are usually reserved for cases where the cause is unclear after initial testing or when the ulcers do not respond to standard treatment.
Can stress cause genital ulcers?
Stress does not directly cause ulcers, but it can weaken the immune system and may trigger a flare-up of a pre-existing condition such as genital herpes.
Do genital ulcers leave scars?
Most genital ulcers heal completely without scarring if treated promptly. Very deep or chronic ulcers may occasionally leave faint marks.
Are sitz baths effective for all types of ulcers?
Sitz baths are a comfort measure that can provide symptom relief for most types of genital ulcers, whatever the underlying cause. They do not treat the cause itself.
Content reviewed and produced following the Rinnit editorial framework. Last updated: October 8, 2026.
References
Cleveland Clinic. Genital Ulcers. Cleveland Clinic. February 13, 2026. https://my.clevelandclinic.org/health/diseases/23320-genital-ulcers
Loh AJW, Ting EL, Wi TE, et al. The diagnostic accuracy of syndromic management for genital ulcer disease: a systematic review and meta-analysis. Front Med (Lausanne). 2022;8:806605. PMID 35071282. doi:10.3389/fmed.2021.806605
Iizuka Y, Takase-Minegishi K, Hirahara L, et al. Beneficial effects of apremilast on genital ulcers, skin lesions, and arthritis in patients with Behçet's disease: a systematic review and meta-analysis. Mod Rheumatol. 2022;32(6):1153-1162. PMID 34752620. doi:10.1093/mr/roab098
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