What gynecological examination is BV

BV is the abbreviation for bacterial vaginosis. This examination is a common routine vaginal discharge test used in gynecology to determine whether there is a dysbiosis of the vaginal flora and whether there is bacterial vaginosis infection.

1. Purpose of examination:

The main purpose of BV examination is to diagnose bacterial vaginosis. Under normal circumstances, lactobacilli are the dominant bacterial group in the vagina, maintaining an acidic environment. When lactobacilli decrease and miscellaneous bacteria such as Gardnerella and anaerobic bacteria multiply in large numbers, bacterial dysbiosis occurs, leading to bacterial vaginosis. Through BV examination, it is possible to determine whether there is a specific type of infection and guide subsequent treatment.

2. Examination method:

BV examination is usually performed by a gynecologist using a sterile cotton swab to take a small amount of secretion sample from the vaginal wall or posterior fornix during vaginal endoscopy examination. The whole process is fast and generally without any obvious discomfort. The collected samples will be sent to the laboratory for testing key indicators such as clue cells, amine tests, pH values, etc. through smear, staining, or the use of specific reagent kits.

3. Judgment criteria:

Doctors will combine several indicators to determine whether the BV test result is positive. The commonly used standards include: vaginal secretion pH value greater than 4.5; After adding potassium hydroxide, a clear fishy smell is detected, indicating a positive amine test; Finding clue cells under the microscope, that is, a large number of short rod-shaped bacteria attached to the surface of vaginal epithelial cells; And there is a decrease in vaginal lactobacilli. Usually, meeting three of these criteria can diagnose bacterial vaginosis.

4. Positive significance:

If the BV test result is positive, it indicates the presence of bacterial vaginosis. Patients may feel increased, thin, and fishy vaginal discharge, especially after sexual activity when the odor intensifies. Some people may also experience mild itching or burning sensation in the external genitalia. If not treated in a timely manner, it may increase the risk of pelvic inflammatory disease and endometritis, and may also cause adverse pregnancy outcomes such as premature rupture of membranes and preterm birth for pregnant women.

5. Follow up treatment: After being diagnosed with bacterial vaginosis, doctors usually recommend the use of anti anaerobic drugs for treatment, such as metronidazole suppositories, tinidazole tablets, or clindamycin ointment. During the treatment period, sexual activity should be avoided, personal hygiene should be observed, and the vagina should not be washed to avoid damaging the normal microbiota. Partners usually do not require routine treatment, but patients with recurrent episodes may require joint management by both parties. Daily advice is to keep the perineum dry, wear cotton underwear, and avoid overuse of antibiotics.

It is recommended that women undergo a gynecological examination once a year, including routine vaginal discharge and BV examination. If there is an increase in vaginal discharge, odor, or discomfort in the external genitalia, seek medical attention promptly. Pay attention to regular sleep patterns, balanced diet, and avoid excessive cleaning of the vagina, which can help maintain the balance of vaginal microbiota and reduce the probability of bacterial vaginosis.