Bacterial vaginosis (BV) - Gynecology

What is Bacterial Vaginosis?

Bacterial Vaginosis (BV) is a common vaginal infection caused by an imbalance in the natural bacteria found in the vagina. Normally, the vagina contains a mix of both "good" and "bad" bacteria, but in BV, the "bad" bacteria outnumber the "good" bacteria. This imbalance can lead to unpleasant symptoms and complications if not treated properly.

What Causes Bacterial Vaginosis?

The exact cause of bacterial vaginosis is not well understood, but it is associated with several risk factors. These include multiple sexual partners, new sexual partners, douching, and a natural lack of the bacteria Lactobacillus, which helps maintain the vaginal pH balance. It's important to note that BV is not considered a sexually transmitted infection (STI), although sexual activity can increase the risk.

What are the Symptoms of BV?

Many women with bacterial vaginosis may not experience any symptoms. However, when symptoms do occur, they can include:
Thin, white or gray vaginal discharge
A strong fishy odor, especially after sex
Vaginal itching
Burning during urination

How is BV Diagnosed?

Diagnosis of bacterial vaginosis typically involves a pelvic exam and a sample of vaginal discharge. The sample is examined under a microscope for the presence of clue cells, which are vaginal cells coated with bacteria. The vaginal pH may also be tested, as a pH higher than 4.5 can be indicative of BV. Additionally, a "whiff test" may be performed, where a sample of discharge is mixed with potassium hydroxide to see if a fishy odor is produced.

What are the Treatment Options for BV?

Treatment for bacterial vaginosis typically involves antibiotics. Common medications include metronidazole (available as a pill or gel) and clindamycin (available as a cream or pill). It's important to complete the entire course of antibiotics even if symptoms improve before the medication is finished. Some women may experience recurrent BV and may require a longer course of treatment or alternative therapies.

Can BV Lead to Complications?

While bacterial vaginosis is generally a mild infection, it can lead to more serious complications if left untreated. These complications can include:
Increased susceptibility to STIs such as HIV, chlamydia, and gonorrhea
Complications during pregnancy, such as preterm birth and low birth weight
Increased risk of pelvic inflammatory disease (PID)
Post-surgical infections after procedures like a hysterectomy or abortion

How Can BV Be Prevented?

While it may not be possible to prevent bacterial vaginosis entirely, there are several steps that can reduce the risk:
Avoid douching, as it can disrupt the natural balance of bacteria in the vagina
Limit the number of sexual partners
Use condoms to reduce the risk of sexually transmitted infections
Maintain proper vaginal hygiene without using harsh soaps or scented products

When Should You See a Doctor?

If you experience symptoms of bacterial vaginosis, it is important to see a healthcare provider for a proper diagnosis and treatment. Additionally, if you are pregnant and have symptoms of BV, seek medical advice promptly to avoid complications. Recurrent BV or persistent symptoms after treatment also warrant a visit to a healthcare professional.
Understanding bacterial vaginosis and its implications is crucial for maintaining vaginal health. By recognizing the symptoms and knowing the treatment options, women can take proactive steps to manage and prevent this common gynecological condition.



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