Yellowish leucorrhea is not recommended for intercourse. The normal leukorrhea of women is often clear and sticky, but if yellow leukorrhea is present, it is caused by some diseases that need to be diagnosed and treated before intercourse can take place. For example, trichomoniasis is a common condition that can cause yellowish-white or yellowish-green leukorrhea and itching of the vulva, and if you have intercourse before treatment, you may infect your partner and cause repeated cross-infection and attacks of vaginitis. If the yellowish purulent leucorrhea is caused by inflammation, intercourse before it is cured may aggravate the inflammation and lead to the spread of inflammation, which is not conducive to the treatment of the disease, so intercourse is not recommended when the leucorrhea is yellow.