Yeast Infection Symptoms: How to Know If You Have One

Q: What are the first signs of a yeast infection?

The first signs of a yeast infection are usually itching and irritation around the vulva, sometimes accompanied by a burning sensation. You may also notice thick, white, clumpy discharge (resembling cottage cheese) and redness or swelling around the vulva. Not all symptoms appear at once — itching alone can be the only early sign.

Q: How do I know if I have a yeast infection or BV?

Yeast infections and bacterial vaginosis (BV) feel different. Yeast infections cause intense itching, thick clumpy discharge with no strong odour, and redness. BV typically causes thin, grey or white watery discharge with a strong fishy smell — especially after sex — and little to no itching. If you're unsure, see a doctor for a swab test, as the treatments are completely different.

Q: Can a yeast infection go away on its own?

Mild yeast infections sometimes resolve on their own within a few days, especially if you stop anything that might have triggered them (like antibiotics). However, most yeast infections need treatment with antifungal medication — either an over-the-counter cream or a prescription oral tablet (fluconazole). Without treatment, symptoms typically get worse rather than better.

Q: What triggers a yeast infection?

Common triggers include: antibiotics (which kill good bacteria along with bad), high sugar diet, pregnancy (raised estrogen feeds Candida), diabetes, a weakened immune system, synthetic or tight underwear, scented soaps or douches, and hormonal contraception. Some women are simply prone to recurrent yeast infections without a clear trigger.

A vaginal yeast infection (vaginal candidiasis) is caused by an overgrowth of Candida, a type of fungus that normally lives in small amounts in the vagina. When the balance of bacteria and yeast is disrupted, Candida multiplies and causes symptoms. It's not a sexually transmitted infection, and it's not caused by poor hygiene — it's an extremely common condition that most women experience at least once.

Classic Symptoms of a Yeast Infection

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Intense itching

Around the vulva and vaginal opening — often the first and most prominent symptom

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Thick white discharge

Looks like cottage cheese — clumpy, thick, white or off-white, usually odourless

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Burning sensation

Especially when urinating or during sex — caused by inflammation of vaginal tissue

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Redness and swelling

The vulva may look red, swollen, and irritated — sometimes with small cracks in the skin

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Watery discharge too

Some women have watery discharge alongside the clumpy discharge

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Pain during sex

Inflammation and dryness can make intercourse uncomfortable or painful

Key feature: Yeast infection discharge is typically odourless or has a very mild scent. If there's a strong or fishy smell, it's more likely to be bacterial vaginosis (BV).

Yeast Infection vs. BV vs. STI — How to Tell the Difference

Symptom	Yeast Infection	BV	Chlamydia/STI
Discharge colour	White, clumpy	White, grey, thin	Yellow or green
Discharge texture	Thick, cottage-cheese	Watery, thin	Varies
Odour	None or mild	Strong, fishy	Possible unpleasant
Itching	Intense	Mild or none	Sometimes
Burning	Yes	Sometimes	Sometimes
Redness/swelling	Common	Uncommon	Sometimes

What Causes a Yeast Infection?

Anything that disrupts the normal balance of bacteria and yeast in the vagina can trigger a yeast infection:

Antibiotics

The most common trigger. Antibiotics kill good bacteria (Lactobacillus) as well as harmful bacteria, allowing Candida to overgrow. Yeast infections often develop within a week of finishing a course of antibiotics.

Pregnancy

Elevated estrogen levels during pregnancy create a richer environment for Candida growth. Pregnant women are significantly more prone to recurrent yeast infections.

High blood sugar / diabetes

Candida feeds on sugar. Uncontrolled blood sugar — in diabetes or pre-diabetes — dramatically increases yeast infection risk.

Weakened immune system

Conditions or medications that suppress the immune system (like steroids) reduce the body's ability to keep Candida in check.

Synthetic underwear or tight clothing

Moisture and heat trapped by non-breathable fabrics create ideal conditions for yeast growth.

Scented products or douching

Perfumed soaps, bubble baths, or douching disrupt vaginal pH and can deplete beneficial bacteria.

Hormonal contraception

Some women find hormonal contraceptives (especially high-estrogen pills) increase their susceptibility to yeast infections.

Treatment Options

✓ Antifungal medication works well

Over-the-counter creams — antifungal creams (clotrimazole, miconazole) inserted vaginally for 1–7 days. Available without a prescription.
Prescription oral tablet — a single dose of fluconazole (150mg) treats most yeast infections. More convenient but requires a prescription in many countries.
Suppositories — antifungal pessaries inserted into the vagina. Often more effective than creams for severe symptoms.

Most yeast infections clear within 7 days of treatment. If symptoms persist after treatment, or if you get more than 4 yeast infections per year, see a doctor — you may have a resistant strain or an underlying condition contributing to recurrences.

When to See a Doctor

⚠ Don't Self-Treat — See a Doctor If:

This is your first yeast infection — confirm the diagnosis before treating
You've had more than 3–4 yeast infections in a year
You're pregnant
Symptoms are severe (extensive redness, cracking, sores)
Symptoms don't improve after 7 days of over-the-counter treatment
You also have unusual discharge colour, a fishy smell, or pelvic pain (may be a different condition)

Track Your Symptoms and Cycle

Log discharge, itching, and other symptoms alongside your cycle with WomensPal. See patterns and know if recurrent infections coincide with hormonal changes or antibiotics.

Start tracking free →

Frequently Asked Questions

What are the first signs of a yeast infection?

The first signs are usually itching and irritation around the vulva, sometimes with a burning sensation. Thick clumpy white discharge and redness or swelling often follow. Not all symptoms appear at once — itching alone can be the only early sign.

How do I know if I have a yeast infection or BV?

Yeast infections cause intense itching, thick clumpy odourless discharge, and redness. BV causes thin, grey or white discharge with a strong fishy smell and little itching. If you're unsure, a doctor can do a swab test — the treatments are completely different.

Can a yeast infection go away on its own?

Mild infections sometimes resolve on their own, but most need antifungal treatment. Without treatment, symptoms usually get worse rather than better.

What triggers a yeast infection?

Common triggers include antibiotics, pregnancy, high blood sugar, a weakened immune system, synthetic underwear, scented products, and some hormonal contraceptives.