A member asked:

Dermatologist did scrape test (koh test) on assumed ringworm but didnt see fungus. however i had just shaved with a manual razor over the ringworm spot less than an hour before. could this have affected the test by removing the top layer of skin?

Q: dermatologist did scrape test (koh test) on assumed ringworm but didnt see fungus. however i had just shaved with a manual razor over the ringworm spot less than an hour before. could this have affected the test by removing the top layer of skin?

: Possible, but you may have an other skin lesion(s) mimicking ringworm, e.g., nummular eczema, granuloma annulare, etc.

A doctor has provided 1 answer

Dr. Jay Park answered

Possible, but you may have an other skin lesion(s) mimicking ringworm, e.g., nummular eczema, granuloma annulare, etc.

Answered 4/9/2023

0 views

Thank

More of what we treat

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

A member asked:

Dermatologist did scrape test (koh test) on assumed ringworm but didnt see fungus. however i had just shaved with a manual razor over the ringworm spot less than an hour before. could this have affected the test by removing the top layer of skin?

A doctor has provided 1 answer

Dr. Jay Park answered

Related Questions

A member asked:

Have flat warts on my hands and went to dermatologist to get them frozen. Blisters formed some hours later, and I accidentally tore the skin off of one. Will this make the warts regrow and the virus spread? I see raised red spots where the warts were?

A member asked:

I'v have black spots growing on my bottom lip. They're flat shape circles that seem to grown larger over the years and now new ones are forming. I saw a dermatologist but was told thats how my skin cells grow but did no test. Is surgey an option?

A member asked:

How do we treat tinea versicolor at home? I dont get to see my dermatologist until late July. Ive had tinea spots for months. What do I do? I saw something about nizoral shampoo. Do we moisturize after use? And can we use regular skin wash after?

A member asked:

A patch on my shoulder's skin (that has completely healed) followed by multiple red bumps in my body is it likely pityriasis rosea or ringworm? dermatologist isn't quite sure?

A member asked:

Hi,i have molluscum contagiosum bumps in my penis head and shaft,I didn't do sex with anyone recently and so how much sessions of cryotherapy are required to heal each spot or bump completely.My dermatologist already gave me 2 sessions with 3 weeks?

Sponsored Content

People also searched for:

Derm did KOH test for fungus but didnt see any, then I told him I shaved with a razor less than an hour before and hd confirmed that DOES interfere with results by removing top layer of skin. Is a biopsy another way of detecting fungus?

Doctor did KOH scrape on potential fungal rash, it didnt detect fungus so now he feels it may be something else but I forgot to mention I shaved with a manual razor over the spot that morning barely an hour beforehand. Would that affect the results?

I have overthick nail skin but don't have nail fungus. This causes ingrown nails. Should I see a podiatrist or a dermatologist?

21yr, caucasian, i got a sunburn on my knee 8 mo ago, the skin detached and now I have a white rough spot with 2cm, should I see a dermatologist?

I have a small spot in the back of my head with hair missing and the scalp is kind of noticeable. Would I see a dermatologist for hair loss in the back of my head and my scalp being noticeable?

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?