Waiting times information is also used locally in the. management of elective surgery. National data on elective surgery waiting times includes data on the clinical urgency of the. patient, that is, on how quickly the patient should have surgery.
These areas of skin have the most oil (sebaceous) glands. Acne occurs when hair follicles become plugged with oil and dead skin cells. Hair follicles are connected to oil glands. These glands secrete an oily substance (sebum) to lubricate your hair and skin.
References in periodicals archive ? Acne is a disease of the sebaceous gland of the skin and is caused by clogged pores by the increased sebum production and the presence of bacteria. Acne is caused by an enlargement of the sebaceous follicles, which contain oil-producing sebaceous glands, the root cause of acne.