How many days does the lower back pain caused by the implantation of a fertilized egg last?

Patient's question:

No

Doctor's answer:

It generally appears around the age of 40. The physiological phenomenon is very complex, although there are some common patterns, individual differences are also very large. Usually, in the early stages of embryo implantation, these symptoms may exist: a slight dull pain and sour sensation in the lower abdomen, breast tenderness, and sometimes a feeling of fatigue similar to a cold.