Beware: Menstrual irregularities can lead to infertility!

　　1. Fallopian tube obstruction.
　　
　　Congenital dysplasia of fallopian tubes, Uterus Luminal stenosis or surrounding adhesions caused by endometriosis or various inflammations often hinder sperm , egg transport and fertilization operation.
　　
　　２、amenorrhea。
　　
　　If you are over 18 years old and have not yet had menstruation, and if you have not had menstruation for more than 6 months after menstruation, it is called amenorrhea. There are many cases of infertility caused by amenorrhea. The latter can be divided into uterine, ovarian, pituitary, and hypothalamic diseases according to the location of the disease.
　　
　　3. Insufficient secretion of cervical mucus or cervical lesions.
　　
　　Because some patients have low ovarian function and insufficient estrogen secretion, or the glands of the cervix do not secrete well, the cervical mucus becomes sticky, making it difficult for sperm to penetrate the cervix and affect pregnancy. Cervical lesions, such as cervical atresia or stenosis, cervical polyps, and tumors, can also hinder the passage and transport of sperm.
　　
　　4. Menstrual disorders.
　　
　　Changes in menstrual cycle: early or late menstruation ； Changes in menstrual flow: too much or too little menstruation ； Prolonged menstruation: common in luteal insufficiency and endometrial inflammation.
　　
　　５、Abnormal leucorrhea。
　　
　　have Vaginitis、Cervicitis（cervical erosion ), endometritis, adnexitis, pelvic inflammatory disease and various sexually transmitted disease When it exists, there will be increased leucorrhea, yellow color, odor, tofu-like or watery appearance, or accompanied by vulvar itching and pain, etc., and these diseases can affect pregnancy to varying degrees.
　　
　　６、Dysmenorrhea。
　　
　　Abdominal pain during menstruation may occur when endometriosis, pelvic inflammatory disease, uterine fibroids, uterine dysplasia, abnormal uterine position, etc. exist. Symptoms before and after menstruation: A small number of women periodically experience a series of symptoms such as "premenstrual breast bloating", "menstrual headache", "menstrual depression or irritability" before and after menstruation, which are often caused by endocrine disorders and abnormal luteal corpus function, often leading to infertility.