Name one condition that requires a barber to refer a client to a physician.

Certain conditions require a barber to refer clients to a physician, and scalp infections are a primary example. Scalp infections can manifest in various ways, including redness, swelling, pus, or significant discomfort, and they may indicate a bacterial or fungal infection that needs medical intervention for proper diagnosis and treatment. Barbers, while skilled in hair care, are not equipped to diagnose or treat medical issues, so referring clients to a physician ensures they receive the appropriate care for their health and safety.

In contrast, conditions like split ends, dandruff, and dry hair are typically related to hair health rather than scalp health. While these issues can affect a client's appearance and might benefit from specific hair care treatments, they do not necessitate medical attention. Therefore, they do not require a referral to a physician.