factors that cause oily skin
Oily Skin Causes. People with oily skin often wonder what they're doing to cause the problem. They may blame it on the greasy pizza they ate last night, but the truth is they should probably blame their genes.Diet can aggravate acne, but it doesn't cause oily skin [source: WebMD ].Oily skin is hereditary -- you can change your diet or change your lifestyle, but if your mom or dad has oily skin, chances are you will, too.However, if your oily skin comes and goes, it may have less to do with genes and more to do with hormonal shifts in your body.ily Skin Causes. People with oily skin often wonder what they're doing to cause the problem. They may blame it on the greasy pizza they ate last night, but the truth is they should probably blame their genes.