Case 2. Hysterosalpingogram (HSG) with pregnancy in the same month. 1. Clinical diagnosis and treatment: Patient Li, 28 years old, was first seen in September 2009, complaining of infertility for 3 years after marriage, menstrual history: 14 years old, 5~7/35-40 days, medium menstrual flow, no dysmenorrhea. Endocrine investigation: follicle stimulating hormone (FSH) 5.2IU / L, luteinizing hormone (LH): 8.36IU / L, estradiol (E2:) 124pmol / ml, prolactin (PRL): 16ng / ml, thyroid-stimulating hormone (TSH): 2.3uIU / l, half a year ago, the external hospital fluids suggest that: bilateral tubal patency. Male semen routine 46.7×10^6/ml, anterior motility (A+B) spermatozoa 45%, liquefied in 30 minutes. Natural cycle monitoring follicular development, 30 days of menstruation, the right ovary dominant follicle development, guidance of coitus, PCT: cervical mucus, pulling 6cm, see active spermatozoa 15-20/HP. in October 2009, 3 days after the menstrual period of the uterine tubography (HSG) suggests: the uterine cavity morphology is normal, the bilateral tubal patency, after the operation was given to the cefotamaxel to prevent infection, the advice of coitus is prohibited for 2 weeks. After the operation, the patient’s menstrual period did not arrive for half a month, urine HCG was positive, blood β-HCG: 2382.5IU/L, 56 days after menopause, B ultrasound showed intrauterine pregnancy with a single fetus, the size of the gestational sac was 2.5×1.9cm, and fetal buds were visible, and the fetal heart beat was good. On July 10, 2010, the patient gave birth to a girl at full term, weighing 3600 grams, with normal development. Sun Xiuzhen, Center for Reproductive Medicine, First People’s Hospital of Jining City, China 2. Discussion: In this case, the patient was pregnant in the same month after HSG. She was pregnant the month after HSG, indicating that her ovulatory function had recovered and she had not paid attention to contraception. The patient thought that she would not get pregnant with irregular menstruation and did not adhere to contraception. Hysterosalpingography (HSG ) is both diagnostic and therapeutic. HSG can be used to find out the degree of tubal patency, the site and degree of obstruction, and to formulate the appropriate treatment plan. HSG also plays a role in unblocking the fallopian tubes in some cases, prompting them to conceive as soon as possible. In the absence of other infertility factors, most patients can conceive within 3-6 months after HSG. In our case, we conceived during the HSG cycle. From the eugenic point of view, in the pregnancy cycle, we should avoid all kinds of things that may have adverse effects on the embryo: radiation, anticancer drugs, viral infections, high fever, and other factors that may cause teratogenicity. That is, avoid exposure to various harmful biological, physical and chemical factors. We routinely ask our patients to use contraception during the HSG cycle, introducing reliable methods of contraception. Try to avoid pregnancy during cycles of radiation exposure to avoid possible adverse effects. The International Commission on Radiological Protection (ICRP) recommends an upper limit of 5 mSv (millisieverts) for the annual equivalent dose to an individual, and an equivalent dose of 0.7 (millisieverts) for a pelvic radiograph is less teratogenic. Of course HSG when there is pregnancy, it is not inevitable that there will be fetal malformations or other adverse effects that require abortion to terminate the pregnancy. Decide whether to terminate the pregnancy depends on whether the pregnancy is progressing normally, early pregnancy should be monitored its blood HCG and P, E2 changes; 6-7 weeks after monitoring its ultrasound monitoring results. Normal embryonic development increases week by week, and its indicators are judged by the size of the gestational sac and the length of the head and hip (CRL) at 6-7 weeks; and the length of the biparietal neck can be referred to after 11-12 weeks. If the growth and development are basically normal according to the week, referring to the observation of BBT, HCG, P, we can make a comprehensive judgment of whether there is any abnormality in the pregnancy, and then decide whether to terminate the pregnancy or not. From the current infertility diagnosis and treatment status, primary infertility and secondary infertility each account for half of the total number of cases, and abortion is the main cause of secondary infertility. Although the incidence of secondary infertility after abortion is very low, the number of secondary infertility after abortion is indeed quite high due to the large number of abortions, and some even pay a high price. Like case 1 patient that is secondary ectopic pregnancy after abortion and then infertility. Therefore, the abortion can be avoided as much as possible in order to reduce the occurrence of secondary infertility.