How Acne Develops

This article was Medically reviewed by A. Michael, MD

There are several internal and external factors that can lead to acne, but in general, it is mainly caused by increased secretion of oil and buildup of dead skin cells and other debris. Acne develops through the following steps:
Up to date, it is not known what triggers these events or why some follicles are affected and others are not. The exact cause of cystic acne is still being debated on. Even though the initial colonization by P. acnes still plays an important part in the
initiation of this skin disorder, the exact triggers of acne, as well as the progression of this disorder, have not yet been clearly established and validated. Currently, a few of the bacteria related factors of acne have now been recognized and include the following: