What skin condition is associated with malfunctioning sebaceous glands?

Acne is a skin condition directly associated with the malfunctioning of sebaceous glands. Sebaceous glands are responsible for producing sebum, an oily substance that helps keep the skin moisturized and protects it from bacteria. When these glands become overactive, they can produce excess sebum, leading to clogged pores and the proliferation of bacteria, which results in acne.

Additionally, various factors can contribute to the development of acne, including hormonal changes, which often trigger increased activity in the sebaceous glands. For instance, during puberty, hormonal changes drive higher sebum production, making teenagers more susceptible to acne.

The other conditions mentioned are not primarily related to sebaceous gland dysfunction. Eczematous dermatitis typically involves an allergic reaction or irritation, psoriasis is a chronic autoimmune condition characterized by rapid skin cell turnover, and keratosis refers to a growth of keratin on the skin, which is unrelated to the function of sebaceous glands.