Transvaginal ultrasound and MRI are used to diagnose adenomyosis. On transvaginal ultrasound, the uterus may appear globally enlarged with heterogeneous myometrial texture and poorly defined endometrial-myometrial junction. MRI can identify adenomyosis as increased junctional zone thickness over 12mm with T2 hyperintense foci. Hysteroscopy with biopsy can confirm the diagnosis but is rarely used. Treatment options include NSAIDs, hormonal therapy like combined oral contraceptives or progestogens to reduce bleeding and pain, and long-acting reversible contraceptives like the levonorgestrel IUS.