Increased production of hormones and overproduction of oil (sebum) in the skin can cause the growth of a bacteria called P.acnes which is typically the cause of breakouts or acne. Genetics are also said to play a big role on how your body reacts to hormones that stimulate acne. There are many habits to either avoid or implement in order to minimize or otherwise rid yourself altogether of P.acnes bacteria and breakouts. Here are five reasons your breakouts may be on the increase: