#Askevvy Contributor

Dr. Krystal Thomas-White, PhD

Dr. Krystal Thomas-White, Ph.D is the Senior Scientist at Evvy.

Dr Thomas-White is a microbiologist specializing in the female urogenital microbiome and how it relates to health and disease. In under 10 years she has over 20 peer-reviewed articles that have been cited over 1000 times. Her research explores how alterations in both the bladder and vaginal microbiomes are associated with common disorders (like UTIs, bacterial vaginosis, and incontinence) and how the microbiome changes in response to hormones throughout life, particularly during prengnacy, and menopause. As senior scientist at Evvy she is excited to help bridge the gender health gap, and provide women with insight into a part of their bodies that has been too often overlooked.

#AskEvvy Articles by Dr. Krystal Thomas-White, PhD

A macro image of pink and black UTI bacteria versus Chlamydia

Vaginal Microbiome 101

UTI vs Chlamydia: How to Tell Them Apart

Urinary tract infections (UTIs) and chlamydia are two common but different infections. Learn more about how to tell if you have a UTI vs chlamydia.

A sad women facing gender health gaps alongside a volcano

Stories & Culture

What Is the Gender Health Gap?

Discover how the gender health gap affects women and people with vaginas today, and how Evvy is working to close the gap through better research and funding.

A female scientist examining an STI through a microscope

Vaginal & Hormonal Health

Where to Get an STI Test

Learn more about where to get an STI test. Plus, how to choose the best option for you based on cost, accessibility, comfort, and convenience.

A woman examining Garnerella vs Gonorrhea

Vaginal Microbiome 101

Is Gardnerella the Same as Gonorrhea?

Learn the differences between Gardnerella (bacterial vaginosis) and gonorrhea, including symptoms, causes, and treatments.

A woman wearing black underwear wondering why she is feeling uncomfortable down there

Vaginal & Hormonal Health

Why Do I Feel Uncomfortable Down There?

Learn about the most common reasons why you might feel uncomfortable down there, symptoms to look out for, and when to see your healthcare provider.

A woman looking thinking about 10 ways to look after vaginal health while taking a bath

Vaginal & Hormonal Health

10 Ways to Look After Your Vaginal Health

Looking after your vaginal health is essential for your overall well-being, but it’s not always a topic we discuss openly. Here are out top 10 tips.

A macro shot of a pink and orange bacteria representing what chlamydia discharge smells and looks like

Vaginal & Hormonal Health

What Does Chlamydia Discharge Smell Like?

Discover what chlamydia discharge smells like and learn how to identify signs of this common sexually transmitted infection.

A women swimming wondering if she can swim with a yeast infection

Vaginal & Hormonal Health

Fact Check: Can You Swim With a Yeast Infection?

Find out if it's safe to swim with a yeast infection, how to minimize discomfort, and tips for swimming while managing symptoms.

Vaginal & Hormonal Health

Why Is My Discharge Greenish?

Discover the causes of green vaginal discharge, including infections like trichomoniasis and BV, and learn when to see a doctor for proper treatment.

black period blood colors (blackish and kind've reddish)

Vaginal & Hormonal Health

Black Period Blood? What the Color of Your Period Means

Wondering about black period blood? Discover what different period colors mean, from black to bright red, and when to see a healthcare provider.

A zoomed-in shot of pink and red antibiotics for UTIs

Vaginal & Hormonal Health

Can You Get Rid of a UTI Without Antibiotics?

Learn whether your body can fight off a UTI without antibiotics, how long it might take, and when it's important to seek medical treatment for a UTI.

Colorful blue and red pills to showcase BV treatment

Vaginal & Hormonal Health

How Long Does It Take for BV to Go Away Without Treatment?

Many women hope BV might resolve on its own, but it’s important to understand what BV is, why it happens, and the risks of leaving it untreated.

a macro image of white candida fungi species

Vaginal & Hormonal Health

Is Candida a Sexually Transmitted Disease?

Let's dive into what Candida is, what STDs are, how to tell them apart, and how to test for and treat both.

a macro shot of a woman holding a vaginal swab

Vaginal & Hormonal Health

What Does a Vaginal Swab Test For?

A vaginal swab can provide essential information about your vaginal health. But what exactly does a vaginal swab test for? Find out more.

A zoomed in photo of a green colored fungi that is showing yeast infection vs. trichomoniasis

Vaginal & Hormonal Health

Trichomoniasis vs Yeast Infection: What’s the Difference?

While they might have similar symptoms, trichomoniasis and yeast infections are distinct issues that require different treatments. Learn more.

A red yeast representing a yeast infection causing bleeding.

Vaginal & Hormonal Health

Can a Yeast Infection Cause Bleeding?

While it’s not typical, yeast infections can sometimes cause bleeding on top of usual symptoms like itching and unusual discharge. Learn more.

A blue fungi that looks like chlamydia representing if chlamydia can be dormant

Vaginal Microbiome 101

Can Chlamydia Be Dormant?

While it’s not typical, yeast infections can sometimes cause bleeding on top of usual symptoms like itching and unusual discharge. Learn more.

a blue water gradient to show if water can flush out a yeast infection

Vaginal & Hormonal Health

Fact Check: Does Drinking Water Flush Out a Yeast Infection?

Does drinking a lot of water help flush out a yeast infection? Learn more about how to treat yeast infections.

An up-close photo of a yellow looking yeasty fungi that looks like it could cause a yeast infection during a period

Vaginal & Hormonal Health

Why Do I Always Get a Yeast Infection During My Period?

Do yeast infections always seem to pop up right around your period? Well, you're not alone. Learn why you might be getting a yeast infection during your period, and what you can do about it.

An macro shot of colorful fungi to represent a yeast infection

Vaginal Microbiome 101

How Often Can You Take Fluconazole for a Yeast Infection?

Learn everything you need to know about taking fluconazole for yeast infections, how often to take fluconazole, plus what to do if treatment fails.

A female statue in dismay as she does not know what to do about her mycoplasma symptoms

Vaginal & Hormonal Health

What You Should Know About Mycoplasma Symptoms

Learn more about two important types of Mycoplasma that can affect vaginal health.

Vaginal & Hormonal Health

What Does Luteal Phase Discharge Look Like?

Learn more about luteal phase discharge, what’s normal, and when to see your healthcare provider.

A women wearing black underwear contemplating whether she can have sex with a UTI

Sex & Relationships

Can You Have Sex With a UTI?

Here’s what you should know about sexual activity when dealing with a urinary tract infection, including how long to wait before having sex with a UTI.

An opened bottle of Metronidazole to treat a UTI

Vaginal & Hormonal Health

Does Metronidazole Treat UTIs?

Metronidazole is a commonly prescribed antibiotic, but is it effective against urinary tract infections, too? Learn more about metronidazole and treating UTIs.