What Are the Effects of Having Sex During Menstruation?
The menstrual period is a time when women are particularly vulnerable across multiple physiological and psychological dimensions. During this phase, various bodily changes occur—most notably, reduced excitability of the cerebral cortex and diminished overall resistance compared to usual.
Engaging in sexual intercourse during menstruation poses significant health risks for women, particularly adverse effects on the uterus. So, what are the specific consequences of having sex during menstruation? Below, we address this question in detail.

What Are the Effects of Having Sex During Menstruation?
1. Decreased Libido During Menstruation
Women commonly experience physical discomfort during their menstrual period. Engaging in sexual activity at this time may exacerbate such discomfort. Moreover, men’s comfort levels may also decline during intercourse at this stage. Therefore, men should demonstrate greater care, understanding, and tenderness toward their partners.
2. Endometrial Bleeding
During menstruation, portions of the endometrium detach and shed, and underlying blood vessels become exposed. Sexual intercourse at this time can cause local trauma, potentially increasing menstrual flow or prolonging the duration of bleeding—and thereby worsening pre-existing menstrual symptoms.

3. Increased Risk of Pelvic Inflammatory Disease (PID)
During menstruation, women are more susceptible to infection. If sexual intercourse occurs without strict attention to hygiene, the risk of developing pelvic inflammatory disease and other gynecological infections rises significantly. Women with pre-existing gynecological conditions should especially avoid intercourse during menstruation.
4. Increased Risk of Infertility
Immune function declines during menstruation, and menstrual blood provides an ideal medium for bacterial growth. Consequently, intercourse during this period increases susceptibility to various gynecological infections—including vaginitis, salpingitis, adnexitis, and pelvic inflammatory disease. In some cases, salpingitis may lead to tubal obstruction and subsequent infertility.
The above outlines the potential health impacts of engaging in sexual intercourse during menstruation. We hope this information proves helpful.