Final answer:
Lichenification is a dermatological response characterized by the thickening and hardening of the skin in response to constant scratching or rubbing. This condition is often seen in chronic dermatitis or eczema.
Step-by-step explanation:
Lichenification is a dermatological response to damage lesions. It refers to the thickening and hardening of the skin in response to constant scratching or rubbing, usually as a result of a chronic dermatitis or eczema.
When the skin is continuously irritated, the body produces more skin cells and collagen in an attempt to protect the skin. This thickening and hardening of the skin results in a rough, leathery appearance and texture.
For example, in atopic dermatitis, the repeated scratching of itchy skin can lead to lichenification, which is characterized by thickened skin with exaggerated skin markings.