Final answer:
Skin lesions come in various forms, such as pustules, ulcers, and vesicles, arising from irritation or diseases like folliculitis, skin cancer, eczema, and acne.
Step-by-step explanation:
Lesions that arise from normal skin due to irritation or disease can be classified into different types, such as a pustule, ulcer, or vesicle. These can be symptoms of conditions like folliculitis, where inflammation of hair follicles occurs, often due to infection. Skin cancer, manifesting most dangerously as melanoma, is related to DNA damage in skin cells, typically from excessive UV radiation exposure. Other skin disorders like eczema and acne also lead to skin lesions and are commonly encountered. Eczema, an inflammatory condition, can affect individuals of any age, while acne is prevalent among adolescents and involves clogged pores that can become inflamed or infected.