By 2. Vaginal Itching
Vaginal itching is a common sign of bacterial vaginosis. You may feel irritation inside your vagina or around the outer skin. The itching can range from mild to hard to ignore. This symptom develops when the balance of bacteria in your vagina shifts and harmful bacteria grow more than protective bacteria.
When this imbalance occurs, the vaginal lining can become irritated and uncomfortable. You might notice itching along with thin white or gray discharge, a strong fish-like odor that is often stronger after sex, and mild burning during urination. These signs often appear together, though their intensity can vary.
The itching linked to bacterial vaginosis is usually less severe than the itching caused by a yeast infection. Yeast infections often cause thick white discharge and intense irritation, while bacterial vaginosis discharge is thinner and has a noticeable odor. Scented soaps and douching can worsen irritation. Medical treatment with prescribed antibiotics is often required to restore healthy bacterial balance and relieve symptoms.
3. Lowered Immune System
Your immune system helps control the balance of bacteria in your body, including your vagina. When it becomes weaker, harmful bacteria can grow more easily. This shift can increase your risk of bacterial vaginosis and make it harder for your body to restore a healthy balance.
Ongoing stress, lack of sleep, and poor nutrition can lower your immune response. Long-term conditions such as diabetes or HIV can also reduce your body’s ability to fight infections. You may not notice immune weakness right away. Instead, vaginal symptoms may return often or fail to fully improve after treatment.
A weakened immune system can also raise your risk of other infections. Bacterial vaginosis can increase your chance of sexually transmitted infections, which creates a cycle of recurring problems. If you often feel run down or get sick easily, careful monitoring of changes in discharge, odor, or discomfort becomes important.
4. Redness
Redness around your vaginal opening can be a visible sign of bacterial vaginosis. You may notice that the skin looks pinker or slightly inflamed than usual. This change is often mild and may come and go. Bacterial imbalance can make the outer skin more sensitive than normal.
Bacterial vaginosis usually does not cause severe irritation, but changes in vaginal discharge can affect the surrounding skin. You might see redness along with thin gray or white discharge and a fishy odor. Unlike yeast infections, bacterial vaginosis often does not cause thick discharge or intense itching, so the redness is usually less severe.
Certain habits can worsen redness, including scented soaps or washes, douching, tight non-breathable underwear, and harsh scrubbing. The skin in this area is delicate and reacts quickly to moisture and pH shifts. Medical evaluation should be considered if redness becomes painful, spreads, or appears with sores or swelling, since another infection may be present.
5. Bladder Infections
Bladder infections are not the same as bacterial vaginosis, but they can occur at the same time. When the balance of bacteria in your vagina changes, harmful bacteria can grow more easily. This shift can increase the chance of bacteria entering your urinary tract and causing infection.
You may notice burning during urination, frequent urges to urinate, passing small amounts of urine, cloudy or strong-smelling urine, or lower belly pressure or pain. These symptoms suggest a bladder infection, also called a urinary tract infection. Bacterial vaginosis does not infect the bladder, but bacterial imbalance can make the spread of germs more likely.
If vaginal and urinary symptoms happen together, discomfort may affect more than one area. Urine testing confirms a bladder infection, and antibiotics are commonly used for treatment. Treating both conditions is important because repeated bladder infections can irritate the urinary tract and lead to ongoing pain or complications.
6. Vaginal Discharge
Vaginal discharge often changes when you have bacterial vaginosis. You may notice a thin, watery fluid that looks gray or off-white. The amount can be greater than your usual discharge. This shift happens because the balance of natural bacteria in your vagina has changed.
The discharge often has a strong, fishy odor that may become more noticeable after sex. Unlike a yeast infection, the discharge from bacterial vaginosis does not appear thick or clumpy. It does not resemble cottage cheese. The texture usually remains smooth and light.
You may not have pain, itching, or burning with the discharge. For many women, odor and color changes are the only signs. The discharge can come and go over time. Medical evaluation is appropriate for any new, unusual, or strong-smelling discharge to confirm the cause and begin proper treatment if needed.
7. Odor
A strong vaginal odor is one of the most common signs of bacterial vaginosis. You may notice a fish-like smell that feels unusual for you. The odor often stands out more than changes in discharge and can become the main reason you sense that something is different.
The smell may grow stronger after sex because semen can shift the balance inside your vagina. Some women notice a stronger odor during their period as well. Pain or itching may not occur, so the odor alone can be the only clear symptom at first.
The odor develops when certain bacteria multiply and release chemicals that create a strong scent. It does not result from poor hygiene, and frequent washing or scented products can worsen the imbalance. Persistent or recurring odor usually signals bacterial overgrowth that requires medical treatment with prescribed antibiotics.
8. Pain While Urinating
You may feel a burning or stinging sensation when you urinate if you have bacterial vaginosis. The discomfort can range from mild to more noticeable. This pain often happens because the vaginal tissues become irritated after the balance of bacteria shifts.
When bacterial vaginosis raises the vaginal pH, normal protective bacteria decrease. Urine passing over irritated tissue can then cause a burning feeling. Pain during urination is not the most common symptom, and many women with bacterial vaginosis do not experience it. If burning occurs, unusual discharge or a strong fishy odor may also be present.
Painful urination can also signal other conditions, including urinary tract infections, sexually transmitted infections, or urethral inflammation. Urine or vaginal fluid testing helps identify the cause. If bacterial vaginosis is confirmed, prescribed antibiotics in oral or vaginal form are typically used, and treatment often reduces irritation and eases the burning sensation.
9. Other STIs
Bacterial vaginosis is not classified as a sexually transmitted infection, but it can increase your risk of getting other STIs. When the balance of bacteria in your vagina changes, your natural defense against germs becomes weaker. This makes it easier for infections to enter and grow.
You may face a higher risk of infections such as chlamydia, gonorrhea, trichomoniasis, genital herpes, and HIV. These infections spread through sexual contact. Some cause symptoms like unusual discharge, burning during urination, sores, bleeding between periods, or pelvic pain, while others may not cause clear signs at first.
If bacterial vaginosis and another STI occur together, symptoms can overlap and feel more intense. Untreated STIs can lead to pelvic inflammatory disease, fertility problems, pregnancy complications, or infection passed to a baby during birth. Sexual contact is the main route of spread, not toilet seats, bedding, or swimming pools.
10. Pelvic Inflammatory Disease
Pelvic inflammatory disease, or PID, is a serious infection that affects your reproductive organs, including your uterus, fallopian tubes, and ovaries. Bacteria can travel upward from your vagina into these organs and cause infection. Bacterial vaginosis can increase your risk of other infections that may lead to PID.
If an infection spreads deeper into your reproductive system, you may notice lower belly pain, fever, unusual vaginal discharge, pain during sex, burning with urination, or bleeding between periods. Some women have mild symptoms or none at all, which can delay diagnosis and allow damage to continue.
Untreated PID can lead to long-term problems such as chronic pelvic pain, difficulty becoming pregnant, or ectopic pregnancy, which develops outside the uterus. About 1 in 8 women with a history of PID experience fertility challenges. Prompt antibiotic treatment is essential to clear the infection and reduce the risk of permanent reproductive damage.
11. Infection After Surgery
If you have bacterial vaginosis and undergo pelvic or gynecologic surgery, your risk of infection can increase. BV disrupts the normal balance of bacteria in your vagina, which allows harmful bacteria to multiply. These bacteria can move into nearby tissues during or after procedures such as hysterectomy, abortion, or other uterine treatments.
After surgery, signs of infection may include increased vaginal discharge, strong odor, pelvic pain, or fever. Healthy vaginal bacteria normally maintain a slightly acidic environment that limits harmful germs. When BV weakens this protection, bacteria can enter surgical areas more easily and delay proper healing. Post-surgical infections can lead to pelvic inflammation, wound infection, longer recovery time, or the need for antibiotics. Screening for vaginal infections before planned surgery helps reduce these risks.
12. Vaginal Dryness
You may notice vaginal dryness along with other changes linked to bacterial vaginosis. This symptom is less common, but it can occur when the natural balance of bacteria shifts. Your vagina normally stays slightly acidic, which helps maintain moisture and protect delicate tissue.
When that balance changes, the vaginal lining can feel less moist and more sensitive. You might feel tightness, mild burning, or discomfort during daily activities. Dryness can also cause pain during sex because friction feels stronger, and light irritation may appear afterward. Small cracks in the lining can develop if dryness becomes severe. Most women with bacterial vaginosis report thin gray or white discharge and a fishy odor rather than dryness. Factors such as scented soaps, douching, smoking, and hormonal changes can worsen dryness.
13. Bacterial Imbalance
Your vagina contains both helpful and harmful bacteria. In a healthy state, helpful bacteria keep the area slightly acidic, which controls the growth of harmful germs. When bacterial vaginosis develops, this balance shifts and harmful bacteria multiply. As a result, your vaginal pH rises above normal levels.
This change can affect how your discharge looks and smells. You may notice thin gray or white discharge along with a strong fishy odor, especially after sex. About half of women with this imbalance report no symptoms. Even without discomfort, the bacterial shift and higher pH remain present.
Several factors can disturb your natural balance, including sexual activity, new or multiple partners, intrauterine device use, douching, scented vaginal products, and antibiotics. Antibiotics can reduce helpful bacteria while treating other infections, which allows harmful bacteria to grow. Although bacterial vaginosis is not classified as an STI, the higher pH can weaken natural defenses and increase your risk of other infections.
14. Giving Birth
If you have bacterial vaginosis during pregnancy, concerns about delivery are common. In most cases, pregnancy and birth proceed without complications. Many women with this condition deliver healthy babies. Even so, bacterial imbalance in the vagina can increase certain pregnancy risks.
These risks include preterm birth before 37 weeks, low birth weight, and early rupture of membranes, which means the water breaks too soon. The overall risk remains low, but it is present. Any noticeable change in vaginal discharge during pregnancy requires medical evaluation.
About half of pregnant women with bacterial vaginosis report no symptoms. The condition is sometimes identified during routine prenatal exams. Antibiotics are commonly prescribed during pregnancy to restore bacterial balance, and providers select medications considered safe for both mother and baby.
15. Malaise
Malaise is a general feeling that something is not right in your body. You may feel tired, low on energy, or slightly unwell without a clear reason. It is not sharp pain or a severe illness, but a vague sense of discomfort that can affect your daily routine.
Bacterial vaginosis mainly affects your vagina and does not usually cause whole-body symptoms. Some women report mild fatigue, low energy, headache, trouble focusing, or a sense of weakness along with unusual discharge or odor. These symptoms are often subtle and easy to overlook at first. The condition more commonly causes thin discharge with a strong smell and changes in color or texture. If malaise appears with vaginal symptoms, your body may be reacting to infection or irritation.
