sentence: Menses happens in the first days of the menstrual cycle.
sentences_after: This is the changes that happen in a woman's body every month. These changes are started by changes in hormone levels in the blood. Menstruation usually starts around the age of 11, even as early as 9 years old, and ends when the woman is too old to have children. However, some women can still have children from the age of 50-70.
concept_name: mense
headings: Menstruation Physical appearance
categories: Female reproductive system