A vagina does not need to be odorless. A mild scent is normal and can change throughout the menstrual cycle, after exercise, or during pregnancy. However, a strong, unpleasant, or unusual odor can sometimes signal an underlying issue.
Here are 4 common reasons for vaginal odor:
1. Bacterial Vaginosis (BV)
BV is one of the most common causes of a strong vaginal odor.
Symptoms may include:
- A noticeable “fishy” smell
- Thin grayish or white discharge
- Mild irritation (sometimes no other symptoms)
BV occurs when the normal balance of vaginal bacteria changes.
2. Forgotten Tampon or Foreign Object
A retained tampon or other foreign object can cause:
- Strong, unpleasant odor
- Abnormal discharge
- Irritation or discomfort
This should be addressed promptly, as it can lead to infection.
3. Sweat and Moisture
The groin area contains many sweat glands. Heat, exercise, tight clothing, and trapped moisture can lead to a stronger odor, especially if the area is not kept dry.
4. Certain Infections
Some vaginal infections can cause:
- Unusual odor
- Changes in discharge
- Itching, burning, or irritation
Examples include some sexually transmitted infections (STIs) and other vaginal infections.
What is usually normal?
A mild scent that is:
- Slightly musky
- Slightly acidic
- Variable during the menstrual cycle
is generally normal and not a cause for concern.
When to see a healthcare professional
Consider seeking medical care if odor is accompanied by:
- Itching or burning
- Pain
- Fever
- Green, yellow, or gray discharge
- Bleeding unrelated to menstruation
- A sudden or very strong change in odor
What not to do
Avoid:
- Vaginal douching
- Harsh soaps or scented products inside the vagina
These can disrupt the natural balance of bacteria and may make odor problems worse.
Key takeaway
A mild vaginal odor is normal. A new, strong, fishy, or foul smell, especially when accompanied by discharge, itching, or discomfort, may indicate a condition such as bacterial vaginosis, an infection, or a retained tampon and should be evaluated by a healthcare professional.
