The procedure for removal of the foreskin provides protection against sexually transmitted infections, reducing the risk of infection by about half. However, the cause of this phenomenon, scientists were able to explain only now.
The fact that circumcision is a radical change at the head of a man’s penis microflora composition, so the risk of catching any infection that is transmissible infections, including HIV, the circumcision is much lower. Data were presented by experts from the Transnational Research Institute in Arizona (USA), reported in the journal mBio.
The study included the participation of 79 persons living in one of the African countries as well as 77 people who were in the control group. Researchers studied the composition of the bacterial flora of volunteers to circumcision and a year after the procedure. The participants, both the first and the second group was initially dominated by anaerobic bacteria - pathogenic bacteria that promote inflammation, and all kinds of infections.
However, after one year in men who were circumcised, such bacteria almost completely disappeared, but it became more useful, aerobic bacteria.
It has already been known for the fact that circumcision is more than 50% reduces the risk of contracting HIV and some other sexually transmitted diseases, but the mechanism of action for a long time, scientists have found it difficult to explain.