Introduction：The success rate of IVF is a major concern for the majority of infertility patients. They are under great ideological pressure, especially hoping to succeed at once, but the sudden cold and fever sometimes can not be defended, IVF treatment process if the cold should do? The woman has a cold and fever before ovulation should be actively treated for colds and flu, do not rush to start ovulation, viral infections may affect the effect of ovulation and follicle quality. Generally, you need to restore your health first, adjust for 2~3 months, wait for the physical and mental state is good, after the virus is cleared, then start to promote ovulation. If the body temperature is not higher than 38℃ during ovulation induction, drink plenty of water and rest, and the eggs can be retrieved normally after the fever subsides; if the body temperature is higher than 38℃, you should choose the antipyretic medication that is safe for pregnant women under the guidance of your doctor; if the body temperature continues to remain unresolved, it is recommended to cancel the current cycle at your discretion. If the body temperature is not higher than 37.5℃, drink more water and take more rest, you can have a normal transfer; if the body temperature is higher than 37.5℃ and the symptoms of cold are obvious, it is recommended to cancel the transfer of this cycle and wait for the next cycle of frozen embryo transfer. Do not blindly use medication for cold after the transfer. If there is no fever, headache, sneezing, runny nose and other minor cold symptoms, it is recommended to observe first, drink more water and rest. If the body temperature exceeds 38 ℃, should be under the guidance of the doctor, choose pregnant women safe cooling drugs; cold itself on the role of the fetus is not clear now, if the mother-to-be is infected by the virus, the fetus may suffer from viral aggression. Try to avoid the first trimester of pregnancy with drugs that are cautious and prohibited for pregnant women. Male party catching a cold Male party catching a cold during female ovulation promotion, if the body temperature is not higher than 38 ℃, drink more water and rest, can be normal sperm retrieval; if the body temperature is higher than 38 ℃, you should try to choose safe antipyretic medication, and can be normal sperm retrieval after getting better. If the temperature persists, it is recommended to cancel the cycle as appropriate, but the patient and couple need to be fully assessed before making a decision, and the eggs can be frozen if necessary. Peanut tells us how to reduce the impact of colds on IVF treatment: 1, pay attention to the ventilation of the living room: frequent ventilation of the living room can not only keep women who are preparing for IVF away from respiratory illnesses, but also prevent germs from breeding, or else they may unknowingly lower their own resistance. 2.Strengthen the sense of self-prevention: avoid cold, rain, excessive fatigue; avoid contact with cold patients, avoid dirty hands touching the mouth, eyes and nose. Pay attention to the protection, upper respiratory tract infections should wear a mask when the epidemic, avoid in and out of crowded public places. Enhance physical fitness, adhere to moderate regular outdoor exercise. 3, drink more water, eat more fruits and vegetables: water can speed up the circulation of the body, take away the body of the virus, on the prevention of colds and pharyngitis has a very good effect. Vitamin C is a scavenger of peroxides of harmful substances in the body, and at the same time has the ability to improve the respiratory cilia movement and defense function. Eat more foods rich in vitamin C, such as tomatoes, cauliflower, green peppers, citrus, strawberries, kiwi, watermelon, grapes and so on.