Maternal–fetal drug (MFM) (otherwise called Perinatology) is a branch of prescription that spotlights on overseeing wellbeing worries of the mother and baby before, amid, and soon after pregnancy. Maternal– fetal medicine specialists are doctors who subspecialize inside the field of obstetrics. Their preparation regularly incorporates a four-year obstetrics and gynecology residency and a three-year association in MFM. They may perform pre-birth tests, give medicines, and perform medical procedures. They act both as a counsel amid bring down hazard pregnancies, and as the essential obstetrician in particularly high-chance pregnancies. After birth, they may work intimately with pediatricians or neonatologists. For the mother, perinatologists help with previous wellbeing worries, and also entanglements caused by pregnancy.