What causes lower abdominal pain and increased vaginal discharge?

Abnormal vaginal discharge may be associated with gynecological inflammation. Normal vaginal discharge is typically milky white or colorless and transparent, sometimes slightly viscous, and odorless. During puberty, vaginal discharge is influenced by estrogen and exhibits cyclical changes—increasing at certain times and decreasing at others. Around ovulation, discharge becomes clear and abundant, whereas it is relatively scant at other times. If abnormalities occur, it is advisable to visit a hospital for routine vaginal discharge testing to guide targeted treatment. So, what causes lower abdominal pain accompanied by increased vaginal discharge? Below, we address this question.

What Causes Lower Abdominal Pain Accompanied by Increased Vaginal Discharge?

1. Vulvovaginal Candidiasis (Yeast Infection)

This symptom may result from vulvovaginal candidiasis. The hallmark manifestations include intense pruritus of the vulva and copious, curd-like white discharge. Additional symptoms may include a burning sensation in the vulva, urgency and dysuria, and dyspareunia. In severe cases, patients may experience such profound discomfort that sitting or lying down becomes unbearable.

2. Bacterial Vaginosis

This condition may also stem from bacterial vaginosis. Its classic clinical presentation includes a marked increase in abnormal vaginal discharge, which appears thin, homogeneous, or creamy, and is grayish-white, grayish-yellow, or creamy yellow in color, with a distinctive fishy odor. Alkaline prostatic fluid (e.g., during intercourse) can trigger amine release, thereby intensifying the odor during or after sexual activity. Some patients may also experience lower abdominal pain during intercourse.

3. Endometritis

It could indicate chronic endometritis. Approximately 40% of affected patients report a sensation of heaviness or dull pain in the lower abdomen and lumbosacral aching during the intermenstrual period. Vaginal discharge increases due to heightened glandular secretion in the endometrium; it is typically thin and watery, pale yellow, and occasionally blood-tinged.

4. Chronic Pelvic Inflammatory Disease (PID)

This symptom may arise from chronic pelvic inflammatory disease. Primary manifestations include lower abdominal heaviness and pain, lumbosacral soreness, increased vaginal discharge, menstrual irregularities, infertility, dizziness, and fatigue. For example, ovarian corpus luteum rupture is one possible complication. Chronic PID is a relatively common gynecological disorder, particularly prevalent among women who have given birth.

The above outlines potential causes of lower abdominal pain accompanied by increased vaginal discharge. We hope this information is helpful to you.