What term describes any structural change in the skin tissue?

The term that describes any structural change in the skin tissue is "lesion." In the context of dermatology and esthetics, a lesion specifically refers to any abnormal change in structure of tissues or organs, which can include various skin conditions such as moles, rashes, sores, or any other disturbances in the normal functioning of the skin. Lesions can indicate underlying health issues or infections and can vary greatly in appearance and severity.

Understanding the term "lesion" is essential for estheticians and practitioners, as it helps in identifying and treating different skin conditions effectively. Recognizing lesions during skin assessments can lead to more informed decisions regarding treatments and products suitable for the client's skin type and its specific needs.