http://facedoctor.ca - Acne could be found on skin in the form of pimples, blackheads, whiteheads, red scaly skin, pinheads or papules. The pores on our skin consist of a type of gland called the sebaceous glands. These glands produce a type of oil called sebum which is required as a lubricant to our skin and hair. Most of the time these glands produce only the right amount of oil required. As a teen’s body begins to mature and develop, though, hormones stimulate the sebaceous glands to make more sebum, and the glands may become overactive. Pores become clogged if there is too much sebum and too many dead skin cells. Bacteria can then get trapped inside the pores and multiply, causing swelling and redness — the start of acne. All these happens due to hormonal changes. But it is also found that acne is caused due to improper diet, psychological reasons of stress and depressions, and due to unhygienic reasons. It could also be caused due to genetic reasons where acne is inherited from parents or ancestors.