What is a major contraindication for performing a nail service?

The presence of warts, fungus, or open wounds is considered a major contraindication for performing a nail service because these conditions can lead to infection or further complications. Warts and fungus are infections that can spread both to the client receiving the service and to others in the salon environment. Open wounds increase the risk of introducing bacteria, which could result in severe infections and delayed healing for the client.

Addressing conditions like these is crucial not only for the health of the client but also for maintaining sanitation standards within the salon. Professional guidelines emphasize the importance of not performing nail services when such contraindications are present to ensure the safety and wellbeing of clients.