Due to youthful ignorance, multiple miscarriages and scrapings in early life and the occurrence of pelvic inflammatory diseases lead to the inability of many mothers-to-be of marriageable age to conceive naturally. Infertility is the failure to conceive after one year of cohabitation without using any contraception. The causes of infertility include both partners, with a relatively high percentage of infertility caused by female factors. How can I determine if I am infertile or have difficulty conceiving? Ovulation: whether the menstrual cycle is regular, whether the volume of menstruation is as usual, whether the period is between 3-7 days. Can there be stretched leucorrhea or egg white like leucorrhea in the middle of menstruation. If the menstrual cycle or the volume or period changes, it may be related to the ovarian ovulation function. Ovarian hormone six needs to be measured on day 2-4 of the menstrual period. And follicle development and ovulation can be detected in the middle of menstruation. 2. Fallopian tubes: Women with past abortions, abdominal pain and other pelvic inflammatory diseases often have blocked or adhered fallopian tubes. Perform hysterosalpingography as early as possible to clarify the presence of tubal adhesions, fluid accumulation and the site of blockage. Personally, I think the hysterosalpingogram with 3D ultrasound is clearer and more dynamic than that with X-ray. 3. Uterus: Ultrasound can help to understand the size of the uterus, the thickness of the lining, and the presence of uterine adhesions. If necessary, hysteroscopy can be performed to directly observe the morphology of the uterine cavity and the opening of the fallopian tubes. 4. Other: If there is no abnormality in any of the above cases, it is necessary to investigate the cause of immunity and whether there is immune incompatibility between the couple. Laparoscopy is also needed to find out that a large part of it is caused by endometriosis. After the endometriosis is treated, pregnancy becomes easier. In conclusion, women who want to have a baby should seek medical advice as soon as possible to find out the cause of their problem and have a successful pregnancy.