There are many necessary items for pre-pregnancy examination of women, mainly including the following items: 1, blood routine: blood routine is the most general and basic blood test. Blood consists of two parts: liquid and tangible cells, and the routine examination of blood is the cellular part of blood. It is one of the commonly used auxiliary examination methods for doctors to diagnose their illness. 2. Urine routine: Urine routine is a preliminary examination that can't be ignored in clinic. Many renal diseases can have proteinuria or visible components in urine sediment in the early stage. Once abnormal urine is found, it is often the first indication of kidney or urinary tract diseases, and it is often an important clue to provide the essence of pathological process. 3. Gynecological B-ultrasound: Advanced color ultrasound equipment technology can obtain three-dimensional images in real time, which is helpful to understand the development of uterus and ovary, whether there are hydrops and tumors in fallopian tubes, whether there are uterine malformations, uterine fibroids and adenomyosis, and whether there are tumors in ovaries. If these conditions occur, you may need to have treatment before. 4. Virus and Toxoplasma screening: Viruses that are toxic to the fetus include rubella virus, cytomegalovirus, coxsackie virus, herpes virus, EB virus, and Toxoplasma (not viruses). If you have pets such as cats and dogs in your family or have had contact with animals, have eaten half-cooked or raw meat, raw fish and lettuce recently, have been exposed to rubella patients recently or have had erythema and rash on your skin, or have had experience in blood transfusion and organ transplantation, you can have this examination after consulting a doctor. These special pathogens may cause intrauterine infection, and they are also one of the important causes of birth defects in newborns.