Final answer:
Dandruff is often associated with a condition called seborrheic dermatitis, which affects the sebaceous glands. Acne, another skin condition due to infected sebaceous glands, results from the accumulation and infection of sebum in pores and commonly occurs on the face and back.
Step-by-step explanation:
The condition commonly referred to as dandruff is indeed a disease involving the sebaceous glands. However, the term usually used when referring to a skin condition due to infected sebaceous glands, especially on the scalp, is seborrheic dermatitis. This condition can cause flaky skin particles often known as dandruff. While both conditions involve the sebaceous glands, acne is specifically a skin disorder characterized by pimples, blackheads, and sometimes deeper skin lesions like nodules. Acne commonly occurs in areas rich in sebaceous glands, such as the face and back. During puberty, hormonal changes, particularly an increase in androgens, lead to the stimulation of sebum release. It's the overproduction and accumulation of sebum mixed with keratin that can block hair follicles causing white or blackheads. When these clogged pores become infected by bacteria like Propionibacterium and Staphylococcus, acne ensues, possibly leading to redness, inflammation, and scarring.