Recommendations, contraindications and precautions for anal sex
Some researchers believe that the presence of immunosuppressive properties in sperm is proven (blocking of T-lymphocytes by factors contained in sperm-TGFbeta-1, IL-10, activin A, follistatin, etc.). These properties are of great biological importance in overcoming the immunogenetic conflict in the fertilization of women.
According to the authors of the study, this property of sperm can cause a decrease in the immune reactivity of the body of a passive partner (in the case of sex without a condom) and manifest an increased sensitivity to infectious diseases.
Since the intestinal microflora can cause infectious and inflammatory changes in the vagina and / or urethra, you should: use condoms, make their change when changing anal sex to vaginal, after copulation, conduct hygienic measures. In the case of vaginal intercourse, after anal without hygienic measures, there may be pain, burning and itching in the vagina.