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.
Causes of acne may include: Acne is at least in part a hormonal disease. We know this because acne symptoms start only after adequate levels of hormones are present during puberty. Also, we know that acne symptoms usually increase when androgen (male hormone) levels increase. Increased levels of growth hormone and IGF-1 may also affect acne.