Uncircumcised men who are exposed to HIV are more likely to become infected, because the foreskin makes them more vulnerable to contracting HIV. Removing the foreskin through MMC reduces the likelihood of HIV infection. The foreskin is more susceptible to HIV compared to other tissue. It has a greater susceptibility to tears and abrasions during sex, creating tiny microscopic holes for the entry of infections, including HIV. The inner surface of the foreskin is also moist, soft and has a high concentration of target cells for HIV infection. The moisture also helps HIV to survive.