There is no exact known cause of acne. However, doctors have attributed the actions of hormones and skin glands to this skin disorder. One of the hormones that can lead to development of acne is the androgen hormone. This hormone increases in males and females at puberty age. The hormone acts on the oil glands found on the skin and causes enlargement of the sebaceous gland. Continued hormone actions leads to plugging of pores and eventually and outbreak of a lesion. This becomes what many people refer to as zits or pimples. In most cases, these lesions occur on the face, neck, chest, back or shoulders.
Changes in the hormonal system that are associated with use of birth control pills may also result in an acne outbreak. These can be seen when one is starting or stopping using the pills. Other drugs such as lithium and androgens also cause acne. Use of greasy cosmetics can also alter follicle cells making them stick at one point and eventually develop a plug.
Genetic factors or heredity is another factor that can be attributed to the development of acne. There are studies that have revealed that some people with acne problems have parents who have had acne. Such people have a history of acne along their family tree.
There are many people suffering from acne problems. This makes it the most common skin disorder. Although it is not a serious threat to human health, it can cause permanents scars and disfiguration, which can result in low esteem in the affected persons.