Which condition might indicate a fungal infection in the nails?

Discoloration and thickening of the nail are key indicators of a potential fungal infection. When a fungal organism infects the nail, it can disrupt the normal structure and function of the nail, leading to changes in color—often yellow, brown, or white—and an increase in thickness. This thickening occurs as the infection encourages the nail to grow abnormally, which can result in the accumulation of debris beneath the nail.

Recognizing these symptoms is crucial for early diagnosis and treatment, as untreated fungal infections can become more severe and difficult to manage. Options referring to even texture with a natural shine, redness and swelling, and softness or flexibility do not accurately reflect the common presentations of a fungal nail infection. These conditions typically denote healthy nails or other types of issues that are not fungal in nature.