Section 20 of 32
DELAYED OVULATION VS ANOVULATION
Langgeng Priyanto, Imam Mustofa, Aswin Rafif Khairullah, Rimayanti Rimayanti, Deddy Fachruddin Kurniawan, Agung Budiyanto, Oktora Dwi Putranti, Giovani Meyrza Oka Putra Caesar, Jumaryoto Jumaryoto, Adeyinka Oye Akintunde, Bima Putra Pratama, Riza Zainuddin Ahmad, Wasito Wasito, and Saifur Rehman · about 1 minutes
Anovulation is a condition in which ovulation does not occur at all during one or more estrous cycles [8]. Unlike delayed ovulation, where ovulation eventually occurs, anovulation reflects total failure of oocyte release and CL formation [161]. The causes of anovulation are typically more chronic, including severe endocrine dysfunction, prolonged NEB, or persistent systemic disease [162].
Diagnosis relies on repeated absence of ovulation via serial ultrasonography and persistently low progesterone, whereas delayed ovulation is diagnosed by identifying a postponed ovulatory event following estrus or follicular dominance [163]. Misdiagnosing delayed ovulation as anovulation may lead to unnecessarily aggressive hormonal protocols and increased reproductive costs, underscoring the importance of accurate differentiation.