Acne is one of the most common skin disorders that can cause damage to skin. Acne not only may disfigure skin, but it also affects the psychology of the sufferer. Acne that begins with plugged skin pores develops in stages. Let us find out more. Acne development stages- In the first stage acne normally begins in the form of whiteheads and blackheads caused by plugged pores of the skin. Blackheads are also called as open comedones and whiteheads are called as closed comedones. The blackheads and whiteheads are the first stage of acne. The second stage is pimples or zits. They are medically known as papules and pustules. Pimples form when the acne gets inflamed. Some people suffer from very large acne that is called nodules and cysts. These are very large and deep lumps of acne. Where does acne develop- acne develops on all the places of the body where sebaceous glands are found. Skin produces an oily substance called sebum. This sebum is produced by sebaceous glands. With the clogging of these glands, acne develops. Sebaceous glands are attached to hair follicles and the sites are mainly - face, neck, chest, back, shoulders neck and upper arms. So you can expect to get acne on all these sites. face is not the only place for acne. Who gets acne - Any body can get acne. Though most of the teenagers suffer from acne. It can occur in the higher age groups of thirties, forties or above. Even if you did not get acne during your teenage , you can get it later in life. Why should we worry about acne - acne can disfigure the skin permanently. It causes lot of mental stress and affects confidence by spoiling the looks. Though acne can clear without medication in few years, treatment can cure acne quickly and stop this irritating condition. This article is only for informative purposes. This article is not intended to be a medical advise and it is not a substitute for professional medical advice. Please consult your doctor for your medical concerns. Please follow any tip given in this article only after consulting your doctor. The author is not liable for any outcome or damage resulting from information obtained from this article.