What does the term 'lesion' refer to in dermatology?

In dermatology, the term 'lesion' specifically refers to any abnormal change in the tissue of an organism, particularly the skin. This includes various forms of marks such as spots, bumps, or eruptions which indicate a deviation from the norm. These can be signs of underlying conditions, infections, or other medical issues that require attention. Therefore, describing a lesion as a mark on the skin that is not normal accurately captures its significance in assessing skin health and diagnosing potential problems. Understanding lesions is essential for any esthetician, as it helps in identifying issues that may need to be discussed with a medical professional or treated in a specific way.