What color change on the nail plate indicates a type of fungal infection?

The presence of dark brown or black discoloration on the nail plate is a strong indicator of a fungal infection, specifically onychomycosis, which is often characterized by changes in nail color and texture. Fungus typically causes the nail to appear thickened and can lead to these dark shades as the fungus grows beneath the nail bed.

In cases of fungal infections, the pigmentation can vary based on the type of fungus present, but dark chromatic changes are commonly associated with the organism's activity. The underlying mechanisms can include the accumulation of debris and dead tissue, as well as the breakdown of nail material, leading to a darkened appearance.

Understanding the visual cues of nail health is vital in nail technology and can guide professionals in identifying and treating possible infections effectively. Proper diagnosis is essential since different colors might suggest various other conditions, but dark brown or black signifies a higher likelihood of a fungal presence.