Yellow or green discharge, particularly when accompanied by an unpleasant smell, irritation, pain when urinating, or discomfort during sex, should be checked.
Possible causes include infections such as trichomoniasis or cervicitis associated with certain sexually transmitted infections.
However, a slightly yellow appearance after discharge dries on underwear does not automatically mean infection. Fresh discharge and dried marks can look different.
Brown or pink discharge
Brown discharge may contain older blood. It can appear at the beginning or end of a menstrual period, when a small amount of blood takes longer to leave the body.
Light pink discharge may occur when a small amount of blood mixes with vaginal fluid. Spotting can happen around menstruation, with hormonal contraception, or for other reasons.
However, bleeding between periods, repeated bleeding after sex, or unexplained spotting should be evaluated. Any bleeding after menopause requires medical assessment, even if it happens only once.
Discharge with a strong or unpleasant odor
A mild natural vaginal scent is normal. The vagina does not need to smell like perfume.
A new, strong, fishy, or unpleasant odor may be associated with bacterial vaginosis or another condition. It can also occur with infections or, less commonly, a retained foreign object such as a tampon.
Covering the smell with scented products does not address the cause and may worsen irritation.
What about small bumps or white spots around the genital area?
The inset in the supplied image shows small pale, rounded bumps on pink skin. It is not possible to identify these structures from the image alone, and they should not automatically be described as vaginal discharge.
Small bumps around the vulva can have many explanations. Some may be normal anatomical variations, while others can be associated with blocked glands, irritation, skin conditions, or infections.
Bumps that are new, painful, blister-like, ulcerated, rapidly increasing, or accompanied by unusual discharge should be examined by a healthcare professional.
Do not squeeze, scrape, or apply strong chemicals to bumps around the genital area.
An illustrative gynecological appointment. A physical examination may help identify the cause of unusual symptoms.
When symptoms become urgent
Seek prompt medical attention if unusual discharge occurs with fever, significant lower abdominal or pelvic pain, vomiting, or feeling seriously unwell. These symptoms can indicate an infection that needs urgent assessment.
If you are pregnant and experience vaginal bleeding, contact your maternity care team immediately. Heavy bleeding, severe pain, fainting, or signs of shock require emergency care.
The key is to avoid interpreting color in isolation. A proper assessment considers the discharge, other symptoms, medical history, pregnancy possibility, and potential exposure to infection.
Chapter 4: How Doctors Find the Cause of Unusual Vaginal Discharge
A visit to a gynecologist for unusual discharge is common. It does not mean that a serious disease is present, and it is nothing to be embarrassed about.
The purpose of the appointment is to understand what has changed and determine whether the cause is a normal hormonal variation, irritation, infection, or another medical condition.
Because several conditions can produce similar symptoms, a clinician may use a combination of questions, examination, and laboratory tests.
Step 1: Discussing the symptoms
A doctor may ask:
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When did the discharge change?
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Has its color, smell, texture, or amount changed?
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Is there itching, burning, soreness, or swelling?
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Is there pain when urinating or during sex?
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Is there bleeding between periods or after sex?
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When was the last menstrual period?
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Is pregnancy possible?
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Have you recently taken antibiotics or used a new intimate hygiene product?
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Is there a possibility of exposure to a sexually transmitted infection?
These questions help identify which tests may be useful.
A doctor may also ask about contraception, pregnancy history, menopause, previous infections, and other medical conditions.
Step 2: A physical examination, if needed
Depending on the symptoms, the clinician may examine the external genital area for redness, swelling, sores, irritation, or unusual skin changes.
A speculum examination may be recommended to look inside the vagina and examine the cervix. This can help identify inflammation, abnormal discharge, or another visible problem.
Not every person needs an internal examination. The clinician should explain why a particular examination is being recommended and discuss the patient's comfort and consent.
Step 3: Testing a discharge sample
A sample of vaginal fluid may be collected using a small swab.
Depending on the suspected cause, the sample can be examined under a microscope, tested for vaginal pH, or sent for laboratory analysis.
Molecular tests may be used to detect infections such as chlamydia, gonorrhea, or trichomoniasis.
Testing helps distinguish conditions that can otherwise look similar. The CDC recommends appropriate examination and laboratory testing when evaluating vaginal symptoms because symptoms alone may not reliably establish the cause.
Step 4: Understanding the results
The treatment depends on the diagnosis.