Which substance is noted as the most common postpartum substance used among mothers?

The most common postpartum substance used among mothers is alcohol. Research consistently indicates that many postpartum women consume alcohol, which can be due to various factors, including stress relief or social norms. Postpartum drinking rates may reflect prior use before and during pregnancy, as well as the challenges and adjustments accompanying new motherhood.

Caffeine is often used postpartum as well, typically for its stimulating effects to combat fatigue. However, its prevalence is generally lower compared to alcohol, which is more socially acceptable in many cultures. Marijuana usage has gained attention recently but does not match the frequency of alcohol consumption among postpartum women. Prescription medications are used, particularly for managing postpartum mental health conditions, but they are not as commonly used as alcohol in the general postpartum population.