Generally speaking, the majority of people with successful implantation do not have any particularly noticeable symptoms, and a small number of patients may experience mild lower abdominal discomfort and vaginal spotting bleeding. Fertilized egg implantation refers to the process of the fertilized egg invading and implanting into the uterine lining, which usually occurs 6-7 days after the combination of sperm and egg cell. Generally speaking, most people do not have obvious symptoms when the fertilized egg is successfully implanted. However, due to the individual differences in each person’s body, a small number of people may experience a vague pain in the lower abdomen, soreness and swelling, and some people may experience a small amount of vaginal bleeding, but do not be too nervous, usually in three to four days will be over. If you experience significant discomfort during this period, it is recommended that you go to the hospital for a more detailed examination and treatment.