The vagina is naturally acidic (pH 3.8 to 4.5) to protect against infections. However, this environment is hostile to sperm.
To prevent pregnancy when semen enters the vagina, various methods are used, including hormonal birth control (pills, IUDs) or barrier methods (condoms) which prevent the semen from entering the vagina in the first place. Sperme Dans Le Vagin Video
Semen is alkaline, which helps neutralize vaginal acidity, providing a temporary "buffer" that allows sperm to survive long enough to reach the cervix. The vagina is naturally acidic (pH 3
Once semen dries, the sperm cells typically die within minutes. 3. Reproduction and Pregnancy Prevention Semen is alkaline, which helps neutralize vaginal acidity,
The vagina is "self-cleaning." Washing the external area (the vulva) with warm water is sufficient. Avoid douching, as it can push bacteria further inside and disrupt the natural flora.
Many health experts recommend urinating shortly after intercourse to help flush bacteria out of the urethra, reducing the risk of Urinary Tract Infections (UTIs).