During the follicular phase, rising levels of estrogen cause the endometrium (the lining of the uterus) to grow and thicken.

Authors

• Person: Not available Organization: Cleveland Clinic
  Menstrual Cycle (Normal Menstruation): Overview & Phases

Sources

• Menstrual Cycle (Normal Menstruation): Overview & Phases my.clevelandclinic.org Cleveland Clinic via serper

Referenced by nodes (4)

• estrogen concept
• follicular phase concept
• endometrium concept
• uterus concept