Soap does not kill sperm on contact. However, washing the genital area with soap and water can help remove any residual semen.

It is important to note that soap and water alone are not effective methods of birth control and should not be relied upon to prevent pregnancy. To reduce the risk of pregnancy and sexually transmitted infections (STIs), it is recommended to use condoms, in combination with other forms of birth control, such as hormonal methods (e.g., the pill).

If you are concerned about pregnancy or STIs, it is important to talk to a healthcare professional who can provide information and guidance on the most appropriate forms of contraception for your individual needs.