The smell of menstruation may be caused by gynecological inflammation in women, such as trichomoniasis, fungal vaginitis, bacterial vaginitis, cervicitis, endometritis, cervical polyps, etc., which may trigger women to have menstruation with bad smell. If women have this condition, it is recommended to go to the gynecology department for examination and treatment. When a woman is menstruating, the cervical opening is open, so she must pay attention to her personal hygiene and wash her vulva every day to avoid cross-infection. Women’s bodies are weaker during their periods, so they must pay attention to keeping warm and not catching a cold.