Treatment of Male Genital Warts
Introduction to Treatment Options
- The American College of Physicians recommends that treatment for male genital warts should be selected based on wart characteristics and patient preference, with either patient-applied options or provider-administered treatments as first-line approaches 1, 2
Patient-Applied Treatment Options
- The Centers for Disease Control and Prevention (CDC) suggests applying podofilox 0.5% solution or gel twice daily for 3 consecutive days, followed by 4 days off treatment, repeating this weekly cycle for up to 4 cycles 3
- The CDC recommends limiting the total treatment area to ≤10 cm² of wart tissue and total volume to ≤0.5 mL per day 3, 1
- The healthcare provider should ideally apply the first treatment to demonstrate proper technique and identify which warts to treat 3
- Podofilox 0.5% solution or gel is relatively inexpensive, easy to use, and safe, with mild to moderate pain or local irritation as common side effects 1, 2
- The CDC states that podofilox 0.5% solution or gel is contraindicated in pregnancy 3, 1
- The CDC recommends applying imiquimod 5% cream with a finger at bedtime, 3 times per week (not consecutive days) for up to 16 weeks 3, 1, 4
- Imiquimod 5% cream works as an immune enhancer stimulating interferon and cytokine production 1, 2
- The CDC notes that imiquimod 5% cream is contraindicated in pregnancy 3, 4
Provider-Administered Treatment Options
- The CDC suggests repeating cryotherapy with liquid nitrogen applications every 1-2 weeks until warts clear 3, 1
- Cryotherapy with liquid nitrogen has an efficacy range of 63-88% in clinical trials 1, 2
- The CDC states that cryotherapy destroys warts by thermal-induced cytolysis 3, 1
- The CDC recommends applying a small amount of trichloroacetic acid (TCA) or bichloroacetic acid (BCA) 80-90% only to warts and allowing to dry until a white "frosting" develops 3
- TCA or BCA 80-90% can be repeated weekly if necessary 3, 1
- The CDC notes that TCA or BCA 80-90% can be used in pregnancy, unlike other topical agents 1, 2
Treatment Selection and Monitoring
- The American College of Physicians recommends choosing treatment based on wart location, number and size, patient ability, cost, and convenience 1, 2
- The CDC suggests changing treatment modality if there is no substantial improvement after 3 provider-administered treatments or 8 weeks of patient-applied therapy 1, 2
- The CDC recommends not extending treatment beyond the recommended duration (16 weeks for imiquimod/sinecatechins, 4 cycles for podofilox) 3
Important Treatment Limitations
- The American College of Physicians states that treatment removes visible warts but does not eradicate HPV infection or affect its natural history 1, 2
- The CDC notes that recurrence rates are high with all treatment modalities 2
- The American College of Physicians recommends that untreated warts may resolve spontaneously, remain unchanged, or increase in size/number 1, 2