The appearance of increasingly soft breasts after in vitro transfer may be a symptom of successful embryo implantation and pregnancy, which will appear positive when doing early pregnancy test paper test or blood test for blood HCG two weeks after transfer. The body will secrete a large amount of HCG after successful implantation, and a large amount of 䧳 hormone and progesterone after pregnancy will stimulate breast development, so that the breasts begin to increase in size, engorgement is obvious, become full, areola coloring, breast softening is a common phenomenon in early pregnancy, there are also individual differences, some people’s breasts do not have any major changes, and it is normal to feel not obvious. It is advisable to enhance nutrition after pregnancy, take folic acid to prevent fetal neural tube development malformations, eat a light, easy to digest diet, wear cotton, loose underwear after pregnancy, do not wear tight underwear, wash with warm water every day to prepare for lactation.