What Causes Acne?

Acne develops when — an oily substance that lubricates your hair and skin — and dead skin cells plug hair follicles. Bacteria can trigger inflammation and infection resulting in more severe acne. 2020 Skin Blemishes - Health & Medical What Causes Acne? Acne is one of the most complex skin conditions and can easily be triggered with slight hormonal changes. Acne develops from four major factors combining forces. Overactive oil glands, blocked pores, bacteria and... Acne - Symptoms and causes - Mayo Clinic -