What condition should a hairdresser check for before performing a scalp treatment?

Before performing a scalp treatment, it is crucial for a hairdresser to check for scalp irritation or infection. Scalp conditions like irritation or infection can significantly affect a person’s health and comfort, and performing treatments on an irritated or infected scalp could exacerbate the problem, leading to further issues, including pain or spreading of infections.

Understanding the condition of the scalp allows the hairdresser to tailor treatments appropriately and ensure the client's safety and well-being. If a client has an unresolved infection, applying products or performing treatments could trigger a negative reaction or cause more harm. Therefore, it is paramount to assess for any signs of irritation or infection before proceeding with any scalp treatment.