Why do I have Acne / Pimples ? Face First of all Acne is genetic! That is all. You are predestined to either get acne or not. You may not see it in your parents or siblings, but somewhere down the line (Grandma or Grandpa perhaps) someone in your family passed it along to you. Everyone has the same sebum, testosterone and hormones, so we can’t blame it on those – though those with a great deal of testosterone may have a bit more of an aggravated form. Acne is also more severe in humid climates. It is just in certain families there is a “special” vulnerability called “retention hyperkeratosis.”.