Patient's question:
NoDoctor's answer:
Biochemical pregnancy refers to the fusion of sperm and egg. Generally, after seven days of fertilization, human chorionic gonadotropin (hCG) is secreted. Seven days later, a pregnancy test can detect it. Often, the sperm and egg fuse and hCG is secreted, but they must form a zygote and return to the uterus for implantation. Biochemical pregnancy occurs when the fusion happens but the zygote does not return to the uterus for implantation, or when it returns but fails to implant. This is called a biochemical pregnancy. The main causes include poor embryo development, chromosomal abnormalities, etc. It is recommended that both of you choose a specialized hospital for further examination to identify the cause and receive targeted treatment.