Which phase of the menstrual cycle is marked by the regrowth of the endometrium after menstruation?
The proliferative phase, part of the follicular phase, is when estrogen promotes the regrowth of the endometrium following menstruation.
Ref: NCERT Class 12 Biology Chapter 2: Human Reproduction Menstrual Cycle Fertilization Implantation Pregnancy Parturition Lactation