Patient's question:
NoDoctor's answer:
Common teratogenic factors include microorganisms (such as viruses), drugs, and certain chemical agents, as well as some metals and radioactive substances. Data indicate that among teratogenic factors, drugs account for approximately 1.5%, physical and chemical substances for 1%, viruses and pregnancy-related diseases for 1–3%, and those of unknown cause for 65%. It is noteworthy that about 20% of teratogenic factors originate from genetic diseases in parents rather than from teratogenic factors in the external environment. Before the next pregnancy, proper preconception preparation should be undertaken.