Endometriosis are defined by foci of endometrium outside their native location i.e outside the endometrial lining. Though there is no proof or predisposition of endometriosis for endometrial hyperplasia, still the endometriotic foci can undergo same hormonal changes as that of endometrium lining, which can include hyperplasia as well. Whether a given patient with endometriosis will have hyperplasia cannot be told before hand. It is best to keep a visit a gynecologist who will keep track of endometrial thickness by USG and guide you accordingly. Take care