What is a common sign that a client may need to avoid manicures?

A common sign that a client may need to avoid manicures is the presence of cuts or abrasions on the hands. These injuries can expose sensitive tissue to potential infection and irritants found in manicure products, as well as tools used during the service. It's essential for the safety and well-being of the client that any open wounds or skin irritations are allowed to heal fully before undergoing a manicure.

In contrast, healthy nails, long nails, and excessive polish do not inherently indicate that a client should avoid a manicure. Healthy nails typically suggest that they are in good condition for treatment, while long nails can simply indicate a preference or style choice. Excessive polish may suggest a need for removal or a change in style but doesn't pose the same health risks as cuts or abrasions. Thus, the correct focus should be on signs of injury that could compromise the client's health during the manicure process.