女性的声音音调普遍比男子要高些，这也是女子第二性征的一种表现，女性的声音和月经一样，也受体内性激素的调节。

Female voice tone than men generally want some taller，This is also the woman secondary sex characteristics of a kind of expression，The voices of women and the same period，Are also affected by the body of sex hormones regulation。

　　女性月经期间，由于体内性激素含量的变化，引起声带毛细血管充血，血管壁也变得比平时脆弱，这时如果去K歌，声音过高导致声带过度疲劳，或者咽部运动过量，声带毛细血管就容易发生破裂，造成声带出血和声音嘶哑，歌声自然就不会那么清脆悦耳了。

Female menstruation，As the sex hormone content changes，Cause vocal cord blood capillary congestion，Vascular wall also become fragile than usual，Then if to K song，High voice to vocal cords excessive fatigue，Or pharyngeal movement excess，Vocal cord blood capillary is prone to fracture，Cause vocal cord bleeding and rustiness，Song nature will not so clear the sweet。

　　个别年轻女孩月经期间发音效果反而比平常好，这是因为这些女性的声带往往原来就有缺陷，如声带闭合不紧等。月经期间的充血、水肿，反而使原有的缺陷得到了弥补，显得音色比平时好。但这种反常现象是短暂的，若不注意而用嗓过度，对声带就会造成伤害。

Individual young girl menstruation pronunciation effect instead of good than usual，This is because these women's vocal cord often originally have defects，Such as vocal cord closed not tight, etc。Menstrual period congestion、edema，On the contrary make original defects got up，Appear tone than usual。But this paradoxical phenomenon is short，If you do not pay attention to and excessive use of the voice，To vocal cords can cause damage。

　　所以，为保护嗓子，年轻女孩月经期间，尤其是在月经来潮的前夜和第一二天，不能过度用嗓子，唱歌时间不要过长，切忌强行唱高音。(莉芬)

so，For the protection of voice，Young girl menstruation，Especially in the eve of the menstrual cramps and the first two days，Cannot excessive use voice，Singing time don't too long，Avoid by all means is forced a tenor。(Lisa Finn)