My father and grandfather are nearly bald, so does that mean i'll be bald as well ?

Not necessarily.: Interestingly, most of the genetic risk for male pattern baldness comes from your mother's side of the family, not your father's. If men on your mother's side of your family tend towards balding as they age, you are more likely to go bald than if just the men on your father's side of the family go bald. However, there's no certainty one way or another.