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Skin Glossary · Distinguishing between conditions and causes

Fungal Skin Infection

Related terms · Athlete's foot · Ringworm · Fungal infection

Skin fungal infections are commonly called athlete's foot or tinea. A diagnosis is not made based on the round shape alone; the keratinization of the edges, the affected area, and fungal tests are checked together.

Reviewed by Korean Medicine Doctor Choi Yeon-seung · Last updated 2026-08-25
01

What does fungal skin infection mean?

It refers to a condition where fungi cause an infection in the skin, scalp, fingernails, or toenails. Fungal skin infections are commonly called athlete's foot or ringworm. A diagnosis is not made based on a circular shape alone; the keratinization of the edges, the affected area, and fungal tests are checked together.

02

How is it different from similar conditions?

Eczema and psoriasis can also appear circular and develop scales. A distribution that is prominent on one side, the difference between the edges and the center, and fungal tests help in differentiation.

03

Why is this important in skin care?

We determine whether antifungal treatment is needed first, or if Korean medicine treatment should be used to address remaining itchiness and skin recovery after treatment.

04

What should be checked based on my symptoms?

Repeatedly using only steroid topical agents without a confirmed diagnosis can change the appearance of the lesion, so the cause should be confirmed through a medical evaluation.

Related conditions and medical guidance

Check guides where this term is used

Condition GuidanceTineaTinea is a symptom caused by dermatophytes invading the skin, scalp, feet, groin, or nails. On the skin, it commonly appears as itchy circular or ring-shaped rashes with more prominent edges and scaling. Depending on skin tone, it may appear red or darker, such as brown or gray, and may not form a typical ring on the face, neck, or scalp. It can manifest as scaling, broken hair, or partial hair loss on the scalp; white, soggy, or cracked skin between the toes; itchy bordered rashes in the groin; and thickening, discoloration, or crumbling of the nails. Since it resembles other skin conditions, do not make a definitive diagnosis based on shape alone. Seek medical evaluation if it spreads rapidly or if there is pain, pus, or fever.Condition GuidanceDyshidrosis of the feetDyshidrotic eczema of the feet manifests as deep, small blisters clustering on the soles and sides of the toes, accompanied by itching or stinging. It can worsen after wearing closed-toe shoes or sweating, but sweat alone is rarely the sole cause. It is distinguished from athlete's foot (which involves soreness between toes, fine scales, and nail changes), palmoplantar psoriasis (which features thick, well-defined borders), and contact dermatitis (which follows the shape of the shoe material).Condition GuidanceHand eczemaHand eczema is a type of dermatitis characterized by recurring dryness, redness, flaking, stinging, and deep cracks on the back of the hands, fingers, and palms. Exposure to water, detergents, disinfectants, gloves, occupational hazards, or a history of atopy may be contributing factors. It must be distinguished from pompholyx (characterized by deep, small blisters on the sides of the fingers), tinea manuum (characterized by fine flaking on one hand accompanied by athlete's foot), and contact dermatitis (occurring at the boundary where a specific substance touched the skin).Medical Evaluation GuideDistinguishing between rashes that disappear within hours and dermatitis that lasts for daysFirst, observe whether swelling in the same area generally fades without leaving a mark within a day, or whether it stays for several days, leaving dead skin, oozing, or scabs. Wheals that disappear and reappear in different locations suggest urticaria (hives), while long-lasting surface changes suggest other types of dermatitis; however, a diagnosis requires looking at the overall progression.

Comparison of similar terms

Terms to know for easier distinction

Evidence and Update Information

The definitions and safety standards in the materials below were referenced.

  1. CDC Guide on Fungal Skin InfectionsChecked the causes, transmission, and symptoms by area of fungal skin infections.
Summary and review information for this page

Reviewing Medical Staff

Choi Yeon-seung, Doctor of Korean MedicineChief Director · Editor of Korean Medicine Atlas · BRC Researcher

Page Summary

Skin fungal infections are commonly called athlete's foot or tinea. A diagnosis is not made based on the round shape alone; the keratinization of the edges, the affected area, and fungal tests are checked together.

What this page covers

What is explained
Fungal skin infections are commonly called athlete's foot or ringworm. A diagnosis is not made based on a circular shape alone; the keratinization of the edges, the affected area, and fungal tests are checked together. What should be checked first?
What situations are covered
Fungal skin infections are commonly called athlete's foot or ringworm.
What distinctions are made
Reason for confirmation during medical evaluation: We determine whether antifungal treatment is needed first, or if Korean medicine treatment should be used to address remaining itchiness and skin recovery after treatment.
How should this be understood
A diagnosis is not made based on a circular shape alone; the keratinization of the edges, the affected area, and fungal tests are checked together.

Key Points

  • Meaning of fungal skin infection: It refers to a condition where fungi cause an infection in the skin, scalp, fingernails, or toenails.
  • Difference from similar conditions: Eczema and psoriasis can also appear circular and develop scales. A distribution that is prominent on one side, the difference between the edges and the center, and fungal tests help in differentiation.
  • Reason for confirmation during medical evaluation: We determine whether antifungal treatment is needed first, or if Korean medicine treatment should be used to address remaining itchiness and skin recovery after treatment.

References cited on this page

Skin Terminology Glossary

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