女孩第一次来月经叫初潮,时间大致是在13～15岁之间。也有人提前到11岁或推迟至17岁的。但若过了17岁还未见初潮,就应该到医院找医生诊治。初潮前身体即有变化,一般是身体长高(前3～4年)→乳腺膨大(前2年左右)→阴毛萌出(前1年半)→腋毛生长(初潮前后)。初潮前有一些先兆,如双颊颜面潮红、乳腺发胀隆起或乳头突出等。但上述进程也有 The first time the girl called menstrual cramps, time is roughly between 13 to 15 years old. Others are 11 years old or late until 17 years old. But if you have not seen the age of 17 years old menarche, you should go to the hospital to find a doctor for treatment. The body is changed before the menarche, the body is generally tall (3 to 4 years ago) → breast enlargement (about 2 years ago) → pubic hair eruption (before 1 year and a half) → armpit hair growth (before and after menarche). Some precursors before the menarche, such as cheeks flushing, bulging breast or nipple bulge prominent. But the above process also has