What is the meaning of the secretory state of the endometrium?

Patient's question:

Main symptoms: Contact bleeding Onset time: Test results: Endometrial polyps

Doctor's answer:

Hello: That is a professional term. The endometrium is divided into the proliferative phase and the secretory phase. The proliferative phase of the endometrium occurs after menstruation. After ovulation, the endometrium is in the secretory phase, and then it transitions to the menstrual phase.