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.
Acne is skin condition that causes blackheads, whiteheads, cysts and pimples. It is caused by bacteria buildup, dead skin cells and dried oil clogging skin pores, reports MedlinePlus. Just as hormones, such as testosterone and estrogen, can play a role in skin growth and oil production, your diet can influence acne.