Background: There are many major problems during pregnancy among one is, back pain. Backache during pregnancy as baby grows hallows in lower back becomes more pronounced and this can cause backache. Also become are of hormone changes the ligament become softer and stitch this can put extra strain an joint of lower back and pelvic which can also cause backache may women experiences backache during the 2nd and 3rd trimester lower back pain during pregnancy.

Aim: The aim of the study was to assess the effectiveness of proper body posture maintenance on back pain among antenatal mothers.

Objectives: 1. To assess the level of back pain among antenatal mothers. 2. To assess the effectiveness of structured teaching programme on proper body posture among antenatal mothers. 3. To find the association between back pain with demographic variables among antenatal mothers.

Methodology: 30 antenatal mothers from adults in Dakkilivaripalem, Nellore were selected by using non probability convenient sampling technique.

Results: The study concluded that STP on proper body posture maintenance was found to be effective in reducing back pain among antenatal mothers. Hence the research hypothesis (H1) is accepted and the null hypothesis (H01) is rejected.