Why is it important to assess a client's medical history before treatment?

Assessing a client's medical history before laser hair removal treatment is crucial primarily to identify conditions that may affect safety and efficacy. Understanding a client's past medical history allows the practitioner to spot any contraindications, such as skin conditions, allergies, or medications that could lead to adverse reactions during or after the treatment. For instance, individuals with certain skin diseases, photosensitivity issues, or those taking photosensitizing medications may experience increased risks when undergoing laser treatments. By ensuring that the procedure is safe for the client based on their medical history, practitioners can also enhance the effectiveness of the treatment. This careful assessment helps in customizing the treatment approach, which ultimately leads to better results and minimizes the chance of complications, ensuring the client's safety is prioritized.