Menstrual cycle and Menstrual period

Menstrual cycle noun - A recurring cycle (beginning at menarche and ending at menopause) in which the endometrial lining of the uterus prepares for pregnancy; if pregnancy does not occur the lining is shed at menstruation.

Menstrual period and menstrual cycle are semantically related in menstruation topic. In some cases you can use "Menstrual period" instead a noun phrase "Menstrual cycle", when it comes to topics like menses.

Menstrual cycle and menstrual period are semantically related in menstruation topic. You can use "Menstrual cycle" instead a noun "Menstrual period", if it concerns topics such as menses.