The term<unk>  (or maternal birthing<unk>  refers to the physical postures the pregnant person may assume during the process of<unk> . They may also be referred to as delivery<unk>  or labor<unk> . In addition to the lithotomy<unk> (on back with feet pulled up), still commonly used by many obstetricians, other<unk>  are successfully used by midwives and traditional birth-attendants around the world. Engelmann's seminal 1882 work "Labor among primitive peoples" publicised the<unk>  amongst primitive cultures to the Western world. They frequently use squatting, standing, kneeling and all fours<unk> , often in a sequence. They are referred to as upright birth<unk> .
Childbirth positions
Sex after pregnancy
Prevalence of birth control
Birth
Birthmark
Child development stages
Pregnancy category
Infant formula