It depends on the depth of adenomyosis (abnormal presence of endometrial tissue within the myometrium). The deeper it is, the better the outcomes. In general, patients with only minimal endometrial penetration (less than 2.5 mm), called superficial adenomyosis, often have good results after endometrial ablation.
Conversely, patients with deep adenomyosis usually continue to have problems and require hysterectomy. The depth of adenomyosis can be screened through ultrasound or magnetic resonance imaging (MRI).