Aug 30, 2024 | Healthy Living

How To Identify Ringworm

Worried about a rash? Discover how doctors diagnose ringworm, from physical exams to potential tests like skin scrapings or biopsies.

You’ve been training for the annual Farragut Freedom Run for a couple of months, getting a mile or two in every few days, but you’ve started to notice itchy, red patches all over your feet. Ringworm, a common fungal infection, is typically diagnosed through a combination of physical examination and laboratory tests. While it’s often possible to identify ringworm based on their characteristic appearance, additional tests may be necessary for confirmation.

Physical Examination

A healthcare provider can often diagnose ringworm based on a visual examination of the rash. They will look for the classic circular or ring-shaped pattern, as well as other symptoms such as redness, itching, scaling, and blisters. In some cases, the provider may be able to see the fungus under a Wood’s lamp, a special light that can sometimes cause ringworm to fluoresce.

Skin Scraping

If the diagnosis is uncertain based on physical examination alone, a skin scraping may be performed. This involves taking a small sample of skin from the edge of the rash and examining it under a microscope. The presence of fungal cells can confirm a diagnosis of ringworm.

Skin Biopsy

In rare cases, a skin biopsy may be necessary to confirm the diagnosis. This involves taking a small sample of skin tissue and examining it under a microscope. A biopsy is often performed when the diagnosis is uncertain or if there is a concern that the rash may be caused by another condition.

Differential Diagnosis

Ringworm can sometimes be confused with other skin conditions, such as eczema, psoriasis, or athlete’s foot. To rule out these and other possibilities, a healthcare provider may need to consider the patient’s medical history, symptoms, and the results of any laboratory tests.

Importance of Accurate Diagnosis

Accurate diagnosis of ringworm is important for several reasons:

• Effective treatment: The appropriate treatment for ringworm depends on the specific type of fungus causing the infection.
• Preventing the spread: Ringworm is contagious, so an accurate diagnosis can help prevent the spread of the infection to others.
• Managing other conditions: If the rash is caused by a different condition, such as eczema or psoriasis, appropriate treatment can be provided.

If you suspect you may have ringworm, come see us at AFC Farragut for proper diagnosis and treatment. Early diagnosis and treatment can help prevent the spread of the infection and minimize discomfort.