Which of the following is a common contraindication for nail services?

A common contraindication for nail services is recent injuries. When a client has sustained an injury to the nails or surrounding skin, there is an increased risk for infection or further injury if nail services are performed. It's essential for a nail technician to assess the condition of the client's hands and nails before proceeding with any service. Performing nail services on an injured area could exacerbate the injury, delay healing, or introduce bacteria, leading to complications. Therefore, the safety and well-being of the client must be prioritized by avoiding services on compromised areas.

In contrast, healthy nails would not pose any risks for nail services, while brittle nails may require special handling but aren't outright contraindications. Likewise, chipped polish does not affect the health of the nails or skin and can easily be removed before starting a service.