In Vitro Fertilization Embryo Transfer (IVF) is also known as IVF. In general, each stage is critical and important for a successful union of sperm and egg, the formation of embryo and a successful pregnancy. First of all, I would like to give you a brief introduction of what is meant by “week in”, which is commonly known as the stage of follicle growth and development, this stage is crucial to decide whether we can get good quality embryos. I. Precautions to be taken during the down-regulation period 1. 2. Arrange your diet reasonably. You should not eat spicy and other stimulating foods, and temporarily you should not eat blood-boosting foods, such as red dates and cinnamon, etc. The diet should be diversified, with a balanced intake of various nutrients, mainly fruits and milk with high quality protein; keep your bowels open, preferably without constipation or diarrhea, and don’t avoid too much food. 3, to carry out appropriate exercise. You can do exercise during the downward adjustment period, especially for patients with polycystic ovary syndrome and obese patients, weight loss is good for getting good quality follicles and getting pregnant successfully. 4, keep a happy mood, do not be too nervous, if too nervous patients are recommended for psychological adjustment. 5, the use of short-acting down-regulation drugs (Dafirin) should be placed at 2-8 degrees Celsius storage, to and from the hospital with ice and refrigerated bags on the way, and placed in the refrigerator freezer after returning home. Patients who take long-acting down-regulation injections (Dabigat, leuprolide) can take the injections in the hospital. 6, short-acting hypotonic injection (Daphylline) both arms can alternate shots, subcutaneous injection, the medication process can not be interrupted, the normal use of menstrual period, no need to stop the medication. Continue to use the medication even after ovulation promotion. 7, according to medical advice, as far as possible in the morning injection. 8 descending during the disease, can be normal use of drugs, medication time and descending injection time as far as possible staggered a few hours. The first thing you should do is to stay up late. Staying up late is not good for the growth of follicles and endometrium, so go to bed early and get up early. 2. Soak your feet after your menstrual period is over, with water over your calves for 30 minutes, until the night before the transplant. 3, keep a happy mood, emotionally stable, do not get angry, lose your temper, shouting. Be sure to keep a calm mood, don’t be anxious and don’t get angry. Modern medicine has proved that emotions have a great impact on pregnancy, people in anxiety and mental tension adrenal glands will secrete a hormone to kill the embryo, which is also the reason why some people get pregnant accidentally after a relaxed spirit. 4, do not lift heavy objects; do not drink alcoholic beverages; do not use pain relief or sedation and other drugs. If fever, cough, diarrhea, rash and other medical and surgical diseases occur during the period of ovulation promotion, you must promptly consult the corresponding department in the general hospital, inform that you are currently in the IVF cycle, choose the appropriate medication for timely treatment, and inform the doctor in charge during the review, private medication and other treatments are strictly prohibited. In case of severe high fever, trauma, major systemic diseases, etc., you need to inform the doctor in charge immediately after consultation in the corresponding department to clarify whether you can continue the treatment for assisted conception. In case of drug allergy or extreme discomfort after the injection, the doctor in charge of the group should be informed promptly and the medication should be changed to promote ovulation if necessary. 5. Try to take the injection in the morning. 6.Imported drugs for ovulation promotion (Gonafen, Prilosec) injection and domestic injection for ovulation promotion (urinary promotion) can be taken home to nearby hospitals or clinics for injection, but must be used according to the prescribed dosage of injectable drugs. 7, during the promotion of ovulation should eat more food high in protein such as: milk, soy, fish, shrimp, eggs; cattle, sheep, pork. Drink: brown sugar ginger water (hot drink), milk, black soy milk, protein powder, etc.