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Common Causes of “Bleach” Patches Explained
1. Yeast Infections
Yeast infections can cause white, thick discharge that may look like a bleach patch. Symptoms may also include:
- Itching or burning
- Redness or swelling
- Irritation in the vulva
Yeast infections are very common, especially in women with hormonal changes, diabetes, or those taking antibiotics.
2. Bacterial Vaginosis (BV)
BV is another common cause of vaginal discharge. This is caused by an imbalance in vaginal bacteria.
- The discharge may be thin and white or gray
- Often accompanied by a fishy odor
- Usually not painful, but can be uncomfortable
3. Sexually Transmitted Infections (STIs)
Some STIs, like chlamydia or gonorrhea, can cause abnormal discharge. This may appear as light or yellowish patches in underwear, often accompanied by:
- Burning during urination
- Pelvic discomfort
- Unusual odor
STIs should be tested promptly by a healthcare professional.
4. Urine Residue
Sometimes what appears to be a bleach patch is residual urine. This can happen during exercise, laughing, or sneezing, especially in women experiencing mild urinary incontinence.
5. Hormonal Spotting
Hormonal changes, especially around menopause, can cause light spotting or small patches of discharge that may appear as bleach marks in underwear. This is often normal but should be monitored.
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