Photomicrograph (A) showing functional endometrium E, with glands and stroma lining the cavity wall and surrounded by irregularly arranged smooth muscle cells M, resembling myometrium. Foci of adenomyosis (B) are seen within the myometrium of the resected specimen (arrow). Imaging diagnosis of accessory and cavitated uterine mass, a rare mullerian anomaly. Jain N, Verma R - The Indian journal of radiology & imaging (2014). Not Altered. CC.
Functional endometrial disorders are irregular uterine bleeding that occurs in the absence of recognizable pelvic pathology, general medical disease, or pregnancy. It reflects a disruption in the normal cyclic pattern of ovulatory hormonal stimulation to the endometrial lining.
Functional endometrial disorders include:
- Anovulatory cycle
- Inadequate luteal phase