The Webster Technique is a specific chiropractic analysis and diversified adjustment most commonly performed on pregnant patients. The goal of the adjustment is to reduce the effects of sacral and pelvic subluxation (misalignment). Improving the biomechanics of the pelvis and sacrum reduces nervous system stress. Sacral subluxation may contribute to difficult labor for the mother (dystocia). Dystocia is caused by inadequate uterine function, pelvic contraction, and baby mal-presentation. The correction of sacral subluxation may have a positive effect on all of these causes of dystocia. Sacral misalignment may contribute to these primary causes of dystocia via uterine nerve interference, pelvic misalignment and the tightening and torsion of specific pelvic muscles and ligaments. The resulting tense muscles and ligaments and their effect on the uterus may prevent the baby from being in the best possible position for birth.