You pull down your underwear and see something unexpected. Is that color normal? Should you call your doctor?
Vaginal discharge changes throughout your cycle. That's normal. But some colors signal an infection that needs treatment.
Here's your practical color guide — no fluff, just what you need to know.
What color discharge is most commonly associated with bacterial vaginosis?
Select one answer.
What's normal?
Healthy discharge is clear, milky white, or off-white. It may be thin, sticky, or thick depending on where you are in your cycle. A mild odor is normal too.
Your body uses discharge to clean itself and prevent infection. The amount varies from person to person. Pregnancy, birth control, and ovulation can all increase discharge volume.
Color-by-color guide
Clear or white
This is your baseline. Clear, stretchy discharge often means you're ovulating. Thick, white discharge before or after your period is also normal.
When to worry: If white discharge becomes clumpy like cottage cheese and you have itching or burning, it's likely a yeast infection.
Yellow or green
Yellow or green discharge is abnormal. It often signals a bacterial infection or sexually transmitted infection (STI) like trichomoniasis. A foul or fishy odor usually accompanies it.
Action: See your healthcare provider for testing.
Gray
Gray discharge is a classic sign of bacterial vaginosis (BV). It often has a strong fishy smell that gets worse after sex.
Action: BV is treatable with antibiotics. See your doctor.
Pink, red, or brown
Spotting pink or brown discharge around your period is normal. It's just old blood leaving your body.
When to worry: Bleeding between periods, after sex, or after menopause needs evaluation. Brown discharge that keeps appearing could signal uterine or cervical issues.
When to see a doctor
Call your provider if you notice:
- A change in color to yellow, green, or gray
- A strong fishy or foul odor
- Thick, clumpy discharge with itching
- A sudden increase in amount
- Bleeding between periods or after sex
- Pain during urination or pelvic pain
Quick checklist for your appointment
Before you go, note:
- When did the change start?
- What color and texture is it?
- Any odor?
- Any itching, burning, or pain?
- Any recent sexual activity or partner changes?
This information helps your doctor diagnose faster.
Quiz: test your knowledge
Let's see what you've learned. Answer this quick question.
What color discharge is most commonly associated with bacterial vaginosis?
- A) Green
- B) Gray
- C) Clear
How the Resident Expert Can Help
Dr. Jill Palko, founder of Dr. Jill at Your Cervix, is a board-certified OB/GYN who translates complex clinical information into clear, actionable guidance. Whether you're a patient trying to understand your symptoms or a health brand needing accurate medical content, Dr. Jill brings years of clinical experience to every project. Her work helps reduce confusion and empowers informed decisions — exactly what ObGyn Dispatch stands for.