Vaginal discharge before menstruation

It is common for women to experience an increase in vaginal discharge (leukorrhea) before menstruation—this is a normal physiological phenomenon. In addition to increased discharge, many women also experience breast tenderness and swelling prior to their period, and some may notice mood fluctuations or other psychological changes. All of these are typical hormonal responses and generally require no concern.

Vaginal Discharge Before Menstruation

Typically, vaginal discharge increases slightly before menstruation. Its color is usually milky white and its consistency relatively thick and viscous. This discharge originates from desquamated endometrial cells within the uterine cavity, cervical mucus, and secretions from vaginal glands. Moreover, vaginal discharge is influenced by the cyclical fluctuations of estrogen and progesterone secreted by the ovaries. Immediately after menstruation ends, ovarian estrogen levels are low, resulting in minimal discharge. As time progresses, estrogen secretion gradually rises, causing the endometrium to thicken—and consequently, vaginal discharge increases progressively. Just before ovulation, discharge often becomes clear, jelly-like, and highly elastic (forming long, stretchy threads). If vaginal discharge exhibits abnormal color or odor, prompt medical evaluation is recommended.

Additional Information: Common Pre-Menstrual Symptoms

1. Breast Tenderness

Following ovulation, rising estrogen and progesterone levels stimulate physiological breast tissue proliferation—including both mammary ducts and lobules—leading to breast tenderness in some women. Some may also experience nipple sensitivity or pain. Wearing overly tight undergarments should be avoided, as this may exacerbate discomfort.

2. Lower Abdominal Discomfort

Hormonal shifts and pelvic congestion can cause lower abdominal and lumbar discomfort—including dull aches, mild pain, or a sensation of fullness or pressure. While some women experience such symptoms, others remain asymptomatic. These sensations may begin shortly after ovulation—or appear several days later—thus commonly occurring within the two weeks preceding menstruation.

3. Emotional Changes

In the days—or even up to one week—before menstruation, some women experience emotional instability, such as unexplained irritability, sudden tearfulness, or disproportionate anger over minor issues. Additionally, fatigue, excessive drowsiness, and premenstrual headaches are frequently reported.

The above outlines typical changes in vaginal discharge before menstruation. We hope this information is helpful to you.