Critical appraisal of commonly used treatment for genital warts.

Genital warts are one of the most commonly reported sexually transmitted diseases worldwide. A variety of treatment options are available but few have been assessed in large-scale, randomized, placebo-controlled trials. Provider-applied surgical and non-surgical treatments have traditionally been the therapies of choice. Surgical therapies, including cryotherapy, electrotherapy, laser surgery and surgical excision, are generally equivalent in terms of wart clearance rates, but are associated with high rates of wart recurrence. Trichloroacetic acid is a widely used non-surgical therapy, but little is known about its efficacy, and it is associated with unpleasant side-effects. The patient-applied treatments imiquimod and podophyllotoxin are newer therapy choices which are more acceptable to both patients and practitioners. The wart clearance rates for these two treatments are similar, although imiquimod is associated with lower recurrence rates. In the face of increasing pressures on genitourinary clinic services, patient-applied home therapy represents an attractive option for the treatment of genital warts.