Which of these is the first sign of a possible fungus infection under the acrylic layer of a sculptured nail?

The first sign of a possible fungus infection under the acrylic layer of a sculptured nail is a change in color. Fungal infections can cause discoloration of the nail, which is often one of the most noticeable early indicators. This change in color can manifest as yellow, green, or even darkening of the nail, signaling that something is amiss beneath the acrylic.

Recognizing this change early is crucial as it allows for prompt action to be taken, potentially preventing the infection from worsening. Other symptoms may develop later, but the initial color change serves as a critical visual cue for nail technicians to assess further and possibly recommend a suitable course of action, such as referring the client to a healthcare professional for diagnosis and treatment.