What causes yellow vaginal discharge with a fishy odor?

Nov 13, 2024 Source: Cainiu Health
Dr. Zhang Lu
Introduction
In general, yellow vaginal discharge with a fishy odor may be caused by menstrual cycle changes, sexual activity, ovulation, endometritis, cervicitis, etc. Treatment options include general management and medication. It is important to maintain cleanliness and dryness of the genital area, wear comfortable and breathable underwear, avoid excessive cleaning and the use of irritating products, and regularly monitor changes in vaginal discharge.

Under normal circumstances, yellow vaginal discharge with a fishy odor may be caused by the menstrual cycle, sexual activity, ovulation changes, endometritis, cervicitis, and other factors. It is recommended to seek medical attention promptly and receive symptomatic treatment under the guidance of a healthcare provider. Specific analyses are as follows:

1. Menstrual Cycle

Before and after menstruation, due to residual blood, vaginal discharge may appear yellow or brownish and may develop a fishy odor over time. Changes in vaginal discharge during the menstrual cycle are typically normal and usually do not accompany other symptoms unless there is a noticeable odor, itching, or pain.

2. Sexual Activity

After sexual intercourse, changes in the local microenvironment may cause the vaginal discharge to turn yellow and develop a fishy odor. This is often due to bacteria introduced during intercourse or mixing of semen with vaginal secretions. If no other discomforts such as itching, burning, or pain occur, such changes are usually temporary and do not require specific treatment.

3. Ovulation Changes

During ovulation, hormonal fluctuations may increase vaginal discharge, which may appear slightly yellow but typically lacks a strong odor. If hygiene is inadequate, mild bacterial action may lead to a slight fishy smell. Maintaining cleanliness and dryness, changing underwear frequently, and avoiding harsh or irritating cleaning products are recommended.

4. Endometritis

Endometritis is associated with bacterial infection, low immunity, and other factors. Inflammation can alter the color and odor of vaginal discharge, resulting in yellow discharge with a fishy odor. It may also be accompanied by lower abdominal pain, fever, and other symptoms. Treatment under medical supervision may include medications such as cefuroxime sodium injection, azithromycin dispersible tablets, and tinidazole injection.

5. Cervicitis

Cervicitis is caused by bacterial or viral infections. Long-term chronic inflammation from viral infection may lead to cervical erosion-like changes, yellow-colored discharge, and a fishy odor. Additional symptoms may include contact bleeding and soreness in the lower back or sacral area. Patients may be treated under medical guidance with medications such as Baofukang suppositories, cefixime dispersible tablets, and Zhidai Xiaomi suppositories.

In daily life, it is important to maintain cleanliness and dryness, wear comfortable and breathable underwear, avoid excessive cleaning or using irritating products, and regularly monitor changes in vaginal discharge.

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