What is an effect of estrogen on the female reproductive system?

Estrogen plays a significant role in the female reproductive system by promoting the development of secondary sexual characteristics. These characteristics include breast development, the widening of hips, and the growth of pubic and axillary hair, all of which are vital changes that occur during puberty. Estrogen is also crucial for the regulation of the menstrual cycle and the preparation of the endometrium for potential implantation of a fertilized egg.

The impact of estrogen on secondary sexual characteristics is strongly linked to its role in the overall development of female physical traits, which are influenced by its presence during crucial developmental periods. Understanding the hormonal interplay is essential to grasp how estrogen contributes to both the reproductive system and broader physical development in females.