In the clinic, we are often asked some very simple general knowledge of reproduction, and we have been explaining to our patients over and over again, but there is still a constant stream of patients asking the same questions, and then we realize that we have not done enough to popularize reproductive science, and the famous host once said: good medical science is to cure the disease. So I will be happy to do reproductive science to everyone, for everyone reproductive health escort. 1, the first day of menstruation: is to see red menstrual blood even if the first day, rather than the first day of clean menstruation. The expected date of delivery is also counted from the first day of menstrual blood. 2, ovulation time: ovulation occurs about 14 days before the next period, not between two periods, if the period is the standard 28 days that is the middle of two periods, most people follicular phase can be long or short, and the luteal phase after ovulation is relatively fixed about 14 days, so to calculate ovulation must first know when the next period will come, in order to predict the time of ovulation. 3, folic acid tablets dose: all know that folic acid tablets are to prevent fetal congenital neural tube malformation, before and after pregnancy to eat folic acid tablets, but the dosage is silly do not know, tell you the dose of folic acid tablets is 0.4mg or 0.8mg, 3 months before pregnancy and 3 months after pregnancy to take folic acid tablets or multivitamin tablets on time. 4, the bleeding when the menstruation, and must be menstrual blood: this sentence in my just student colonization, is the teacher told me, at that time I also do not understand what the meaning, but after some things, I understand, for example, a person in the past menstruation is very regular, suddenly this time when the arrival of menstruation has been brown discharge, has not been clean, come to the hospital to regulate menstruation. As a result, the doctor asked her to check for early pregnancy, and the patient expressed her disbelief, mumbling and reluctantly going to draw blood, which turned out to be pregnant, and when the doctor told her she was pregnant, she would instantly cry (especially if the first child was a boy). This is because preterm miscarriage can also present with a small amount of vaginal bleeding, often dark red or bloody leukorrhea. 5. Is the IVF baby your own baby: Now there are still some people who think: the baby born from IVF is not your own baby, IVF pregnancy assistance is to take out the woman’s egg and the man’s sperm, form an embryo and then put it into the woman’s uterus, so that the IVF baby is definitely your own baby, it is your own baby! The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things. But if you have moderate or severe cervical erosion, you can go for TCT or HPV cancer screening, if there is no problem and no abnormal leucorrhea, you do not need treatment, physiological cervical erosion will not affect fertility, but you have done LEEP knife because of cervical erosion, it is not worth it, because LEEP knife is used to treat cervical precancerous lesions, the post-operative cervical opening becomes smaller and may affect the passage of sperm The cervical canal is smaller after the surgery, which may affect the sperm through the cervical canal and reduce the chances of pregnancy! 7, the most advanced abortion method – painless abortion: you are still watching TV, watching commercials about what accidental pregnancy, sleep on it, wake up! If you still want to have the right to be a mother, you should take good contraception! Take care of your uterus like you take care of your eyes! The endometrium is divided into functional layer and basal layer, the functional layer is the one shed by menstruation, the basal layer will be thickened and transformed into functional layer after the functional layer is shed, abortion surgery mainly deals with the functional layer, but there is no way for any doctor or any high-end instrument to distinguish the boundary between these two layers of endometrium, so more or less damage will be caused to the basal layer, this damage will cause the endometrium to maintain at about 0.4cm, to know The endometrium is the most suitable thickness for embryo implantation at about 1.0 cm. This damage is irreversible and the treatment is very ineffective, making it difficult to improve and increase the thickness of the endometrium. One patient experienced a painless abortion that resulted in a very thin lining. Said a sentence that stuck with me: “One painless abortion changed my life”.