There are no known causes for acne, only contributors, I really have to stress that. But this being said, there are 3 major recognized contributors, though there are a number of smaller contributors known to cause acne to some degree as well. This being said, they have nothing to do with washing your face or any of that. The first would be called a sebaceous gland. Basically speaking, it’s the glands that secrete oils that are meant to moisturize and lubricate hairs, skin, etc. When basically speaking there is excess oil produced, this leads to these sebaceous glands being blocked and therefore you having more acne. Second of all there are propionibacterium acne. Basically speaking, these are bacteria that are regularly found in the skin. But when too much oil is produced, they expand. They start to grow in numbers as well, because the oil creates a highly hospitable environment for them. Then they cause acne breakouts. And finally, there is what’s called irregular skin shedding. This means that normally speaking your skin should be shedding away dead skin cells as it goes. But instead, you get the skin cells staying on the skin and clogging up pores. All 3 of these things are major contributors to your acne problems in general.