How long does increased vaginal discharge last during pregnancy?

How long increased vaginal discharge lasts during pregnancy varies from person to person and cannot be generalized.

Vaginal discharge in women is composed of secretions from the vaginal mucosa, cervical canal, and endometrial glands. Its formation is closely related to estrogen levels; therefore, girls before puberty typically do not have vaginal discharge. After conception, a woman's estrogen and progesterone levels rise. Elevated estrogen stimulates proliferation of the vaginal mucosal folds, leading to increased growth and enlargement of vaginal and cervical glandular tissues, resulting in greater mucus secretion and thus increased vaginal discharge. This is a normal physiological response. Such physiological increase in discharge may last for 1–2 months or even persist throughout the entire pregnancy, which generally does not require excessive concern.

Pregnant women often have reduced immunity, making them more susceptible to infections by various pathogens. If there is an increase in vaginal discharge accompanied by itching, it may indicate vaginitis. The characteristics of the discharge may change, appearing yellow, greenish, or curd-like. Additionally, abnormal vaginal discharge could also result from conditions such as cervicitis, pelvic inflammatory disease, or salpingitis. If bacterial vaginosis is the cause, metronidazole gel or metronidazole suppositories may be used intravaginally under medical supervision.

It is generally recommended to keep the perineal area clean and dry, wear loose-fitting clothing, and ensure adequate rest during pregnancy to avoid excessive fatigue.