Which condition is associated with white scaly patches and yellow streaks under the nail plate?

The condition associated with white scaly patches and yellow streaks under the nail plate is onychomycosis. This condition refers to a fungal infection of the nails, which can manifest in various ways, including discoloration such as yellow streaks, and texture changes leading to the appearance of white scaly patches on the surface of the nail. The fungus invades the nail and the surrounding tissue, leading to these visual signs of infection.

Onychomycosis can result in thickening, distortion, and brittleness of the nail, and it often requires specific antifungal treatments to address effectively. The presence of yellow streaks indicates that the infection is affecting the nail's integrity, while the scaly patches reflect the fungal colonization and disruption of the nail's normal appearance and function. Understanding the symptoms associated with onychomycosis is vital for nail technicians, as it helps in identifying and recommending appropriate care or referral for treatment.