Long-term masturbation in women is not a direct cause of cancer, but it may be an indirect trigger of cancer. Women’s vagina is adjacent to urethra and anus, and they also have menstruation every month, so bacteria can easily infect the genital organs and cause inflammation. If there is frequent masturbation, it will stimulate the genital organs, lead to congestion and edema, and cause inflammation of the genital organs. If the inflammation is repeatedly infected, it will make the local immunity low.