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Proliferative phase

Authoring team

In the first half of the menstrual cycle the uterus is in a proliferative phase, during which the lining becomes thicker and the uterine glands become thicker. There is mitosis in both stromal and epithelial cells leading to growth of the glands and thickening of the endometrium from 0.5 mm in the menstrual phase to 3.5 - 5 mm in height at the end of the proliferative phase.

Reference

  1. Basit H et al. Physiology, Menstrual Cycle. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.2024 Sep 27.

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