Hello, I am a father from China. My wife had a caesarean section.Metronidazole 0.5g was intravenous for 4 days.Twenty-four hours later, we breastfed the baby.The abuse of antibiotics in China is serious.I'm not sure it's safe for the baby.Because I found that metronidazole is carcinogenic to animals.I'm worried about the health of the baby and my wife.Is metronidazole commonly used in the United States?Is there a clinical study to confirm the safety of metronidazole in infants?Will metronidazole affect my baby in the future? Now he is one year old.Will his future health be affected?