What is most important to know about a client before beginning a service?

Understanding whether a client is diabetic is crucial before beginning a nail service because diabetes can affect circulation and healing processes. Clients with diabetes are more susceptible to infections and complications that can arise from cuts, abrasions, or even improper techniques during nail care. Knowing about this condition helps the nail technician to take necessary precautions or modifications to ensure the client’s safety and well-being during the service.

For instance, a technician might opt for less aggressive techniques, use specific products that are safe for diabetic clients, or monitor the client more closely for any signs of discomfort or complications. The overall goal is to provide a safe environment tailored to the client's specific health needs, thereby enhancing the quality of care delivered.

While a client's preferred style, favorite color, and allergies are also important factors when consulting with a client, the medical aspects related to diabetes take precedence due to the potential health risks involved.