The KOH (Potassium Hydroxide) Test is commonly used to detect fungal infections in skin, hair, and nails. The test involves applying a potassium hydroxide solution to a skin sample, which helps dissolve the skin cells and allows the fungal elements to become visible under a microscope.
Indications for KOH Test:
● Persistent itching or rashes: If you have unexplained rashes, scales, or patches on your skin, this test helps identify fungal causes like ringworm, athlete’s foot, or tinea infections.
● Nail infections: To diagnose fungal infections of the nails, which often cause thickening, discoloration, or cracking.
● Hair loss: If hair loss is suspected to be caused by a fungal scalp infection, the KOH test can confirm this.
How KOH Test Works:
● A small sample of skin, hair, or nail is collected and placed on a glass slide. Potassium hydroxide (KOH) is applied to the sample, which dissolves keratin and makes any fungal elements visible under a microscope.
Normal Range:
● No fungal elements visible in the sample, indicating no infection.
Abnormal Test Significance:
● Fungal elements visible: If hyphae, spores, or yeast cells are seen under the microscope, it confirms a fungal infection.
Management Based on Results:
● For fungal infections: Treatment includes topical antifungals like clotrimazole or ketoconazole, or oral antifungals for more severe or widespread infections.
Price in India:
● Approx. ₹500 – ₹1,500 for a KOH test.
FAQs
What types of fungal infections can be detected with a KOH test?
The KOH test is used to diagnose ringworm, athlete’s foot, nail fungus, and scalp infections.
Is the KOH test painful?
No, the test is non-invasive and typically involves scraping a small sample of skin, hair, or nails.
Disclaimer: The KOH test is useful for diagnosing superficial fungal infections, but further tests may be necessary for more complex cases.
How HealthPil Can Help:
HealthPil provides access to dermatologists who can help interpret your KOH test results, recommend treatment, and guide you through managing fungal infections.