Which issue prevents a manicurist from performing services on a client?

A manicurist must prioritize the health and safety of their clients, which is why the presence of fungus is a significant issue preventing them from providing services. Fungus can indicate an infection, and performing manicure services on infected areas can exacerbate the condition or spread the infection to other healthy areas of the nails or skin.

In the case of fungus, the risk of cross-contamination is also heightened, not only for the client but for the manicurist and other clients as well. Proper sanitation and safety protocols dictate that any visible signs of fungal infection should lead to the refusal of service until the condition is resolved.

Other conditions, such as dirt on nails or nail polish already on the nails, do not pose similar health risks and can be addressed through cleaning or preparation for the manicure service. Onychophagy, or nail-biting, while a grooming concern, does not represent a health issue that would prevent service like a fungal infection does. Proper awareness of these health guidelines is essential in maintaining safe practices in the salon environment.