Yes, Molluscum Contagiosum Lesions Commonly Appear on the Penis
Molluscum contagiosum absolutely can and does appear on the penis, particularly in sexually active adults where it is transmitted through sexual contact. 1, 2, 3
Clinical Presentation
Molluscum contagiosum on the penis presents as:
- Small, dome-shaped papules with characteristic central umbilication (depression)
- Typically flesh-colored or pearly white
- Can range from typical small lesions to rare giant forms (up to 1.5 cm) 1
- May appear at the base of the penis, shaft, or anywhere on genital skin 1, 2
- Often multiple lesions present simultaneously
Transmission and Epidemiology
In adults, genital molluscum contagiosum is primarily a sexually transmitted infection 3, 4, 5. Key points:
- The rising incidence in sexually active young adults indicates sexual transmission as the predominant route 3
- Lesions can be transmitted even when no visible warts are present
- Genital molluscum should be considered a marker for other STIs - screen both partners for additional sexually transmitted diseases 3
- While common in children through non-sexual contact, genital location in adults strongly suggests sexual transmission 5
Management Approach
Active treatment of genital molluscum is recommended rather than the "watch and wait" approach sometimes used for non-genital lesions in children 3, 6. The rationale:
- Reduces risk of sexual transmission to partners
- Prevents autoinoculation and spread to other body areas
- Shortens duration of infection
- Improves quality of life and reduces psychosocial impact (anxiety, embarrassment, isolation) 3, 6
Treatment Options
Physical removal methods are most commonly used:
- Gentle plucking with forceps (can be done without anesthesia for some lesions) 1
- Cryotherapy
- Curettage
- Note: These may cause scarring or pigmentation changes
Emerging topical therapies show promise:
- VP-102 (standardized cantharidin preparation)
- SB206 (berdazimer, nitric oxide-releasing product)
- Both have shown good safety and efficacy in phase III trials and may become first FDA-approved treatments 7
Important Counseling Points
- Patients should refrain from sexual activity until lesions are gone or removed to prevent transmission
- Inform current sexual partners about the diagnosis 3
- Lesions are benign and not life-threatening
- Will not turn into cancer
- May recur after treatment
- Condoms reduce but do not eliminate transmission risk, as molluscum can infect areas not covered by condoms
Common Pitfall
Do not confuse molluscum contagiosum with genital warts (condylomata acuminata caused by HPV) or herpes. The characteristic central umbilication distinguishes molluscum from these other sexually transmitted infections 2, 4. However, the presence of genital molluscum warrants screening for other STIs given the sexual transmission route 3.