One of the special functions and missions that nature has given to human beings by nature is to reproduce life, and human beings have reproduced without doctors in ancient times. That is why doctors say that we need to let nature take its course when it comes to pregnancy. Under what circumstances do we need to go to the hospital for ultrasound examination and receive guidance or assistance from doctors? Let’s start with an example: Li has been married for 4 years and is infertile, her menstrual cycle is very normal, and she and her husband have had all the tests done and nothing abnormal has been found. Then our doctor said, “Li, we suggest you use ultrasound to monitor for a period of time. After several months of continuous ultrasound monitoring, our doctor found that Li’s follicles often grew to about 16mm in length and then disappeared, which means that Li’s follicles may have been too small and then emptied or atrophied. Combined with the endocrine blood test, we found that one of the reproductive hormones in Xiao Li’s body, luteinizing hormone, appeared prematurely, causing the follicles to fail to develop and grow – an ovulation abnormality that seems to be normal in menstrual pattern but is sufficient to cause infertility. Later, after using the relevant medication, Li quickly became pregnant. Therefore, when the doctor instructs you to use ultrasound to help monitor your ovulation for a period of time, we should not be impatient and follow the doctor’s treatment plan. These cases can choose ultrasound to monitor ovulation 1, the doctor determined because of endocrine causes of irregular menstruation with fertility needs of patients, such as polycystic ovary syndrome; 2, repeated spontaneous abortion of patients, in the ovulation monitoring, through the understanding of follicular growth and development of the regularity of the formation of corpus luteum, it may be helpful in determining the cause of miscarriage; 3, the doctor of the need to undergo artificial insemination techniques, through the monitoring of ovulation, to help you get pregnant quickly. The doctor will find the best time for artificial insemination by monitoring ovulation; 4. Patients with unexplained infertility. During the period of monitoring ovulation, doctors and patients can get the following benefits: we can know the follicular development pattern and specific data of each person accurately, which can make the prediction of the time of ovulation more accurate; in the seemingly normal menstrual cycle, we can find special abnormalities of ovulation, for example, the abovementioned Xiao Li, or we can find the situation that the blood of reproductive hormone test is normal, menstruation is normal, but the follicle will not rupture. rupture. The incidence of this condition is about 10%. If detected by your doctor, your doctor may consider using egg-rupturing medication to help ovulation in subsequent menstrual cycles, depending on the situation. Slow follicle growth may be detected during monitoring, which can be helped with medication to give you a healthy egg. It may be found that the follicles are growing well but the thickness of the endometrium is not synchronized with the follicle growth, so that the cause of infertility may be found to be in the endometrium, and thus targeted treatment can be taken. If only one side of the fallopian tube is open, and the other side has tubal inflammation, incomplete opening, or umbilical adherence, and you wish to conceive naturally, then it is the doctor’s very important responsibility to help the affected patient to reduce the risk of having ectopic pregnancies. Only through continuous ultrasound monitoring can we predict whether ovulation will occur in the left ovary or the right ovary, and help the patient to choose the ovary on the patent side of the fallopian tube to ovulate, so as to achieve a safer goal.