Had a miscarriage once, what tests are needed before pregnancy preparation?

Patient's question:

Have you ever had a miscarriage? Before preparing for pregnancy again, what tests need to be carefully checked? A complete set of essential tests related to miscarriage! Do both partners need to be tested? Which department should you go to? Needed help: Pre-pregnancy essential tests for miscarriage

Doctor's answer:

Hello, according to the situation you described: You had a previous miscarriage. Before trying to conceive again, you can have a thorough check-up. Generally, before conception, the woman can have the "four tests for fetal health" and a chromosomal check, while the man can have a sperm quality check. Additionally, both partners should abstain from alcohol during pregnancy preparation and pay attention to preventing colds. The woman should start taking folic acid three months before conception.