Final answer:
Clients with diabetes are especially susceptible to nail problems due to poor circulation and increased risk of fungal infections; maintaining hygienic practices in nail salons is crucial for reducing infections.
Step-by-step explanation:
The clients who are most susceptible to nail problems are clients with diabetes. Diabetic individuals face a higher risk of nail complications due to potential nerve damage that affects blood circulation to the limbs, which can lead to an increased susceptibility to infection and slower healing of wounds, including those involving the nails. Furthermore, high blood sugar levels can contribute to an increased risk of fungal infections such as onychomycosis, which commonly affects the toenails. To promote healthier nails and reduce the risk of infections, hygienic practices in nail salons should include the sterilization of tools, use of clean towels and basins for each client, and avoidance of sharing nail files and other personal nail care equipment.