Safety and Effectiveness of Different ShangRing Device Sizes for Adult Male Circumcision in Lusaka, Zambia

Inclusion Criteria: * Must be aged 18 to 49 years; * Must be HIV-uninfected per same-day routine voluntary testing at the clinic; * Must be uncircumcised (on examination); * Must be in good general health, at the discretion of the clinician; * Must be free of genital ulcerations or other visible signs of STI (on examination); * Must be able to understand study procedures, and agree to abide by them including the follow-up visit schedule; * Must freely consent to participate in the study and sign a written informed consent form; * Must provide full contact information including cell phone number, address, and other locator information. Exclusion Criteria: * Has an active genital infection upon visual inspection; * Has an anatomic abnormality (e.g. phimosis or hypospadias) that contraindicates ShangRing MMC; * Takes a medication that would be a contraindication for elective surgery, such as an anticoagulant or steroid; or * Has a self-reported medical condition that would be a contraindication for elective surgery, e.g. hemophilia, extreme obesity, poorly controlled diabetes, sickle cell anemia * Has a self-reported allergy or sensitivity to lidocaine or other local * Is not available to be circumcised on the same day as screening.