Background: Back pain is one of the most common problems that occur after pregnancy in postpartum period that affects quality of life. According to a lot of studies women's which complain of low back pain in postpartum period reporting disorders in the trunk. Objective: the main objective of the study was to find the correlation between low back pain and trunk proprioception in postpartum period. Methodology: 20 participants suffered from low back pain in postpartum period and 20 normal participants as a control group their ages ranged from 25 to 35 years old and their body mass index less than 30. Trunk proprioception at 30 degree and at 60 degree. Results: There was a significant effect of low back pain on trunk proprioception at 30 degree and 60 degree flexion (p = 0.0001) and (p= 0.0001)) respectively. There was a positive significant correlation between score of visual analogue scale and degree of angular error in 30 degree flexion and 60 degree flexion (p=0.002) and (p=0.003) respectively. Conclusion: There is a correlation between low back pain and trunk proprioception defect. The proportional between trunk proprioception angular error with VAS was direct.
