menstrual phase   (TTS Sound)

The menstrual_phase has 1 Senses.

• menstrual phase
• the phase of the menstrual cycle during which the lining of the uterus is shed (the first day of menstrual flow is considered day 1 of the menstrual cycle)
• 月経周期の中で、子宮内膜がはがれる時期（月経血が流れた最初の日が月経周期の初日と考えられる）