The position of your pelvis matters a great deal to your spinal alignment and yourlow-backhealth.
Posterior pelvic tilt is because of an imbalance between the core muscles and the leg muscles.
It can cause a variety of uncomfortable symptoms, such as tight hamstrings andback pain.

Illustration by Jessica Olah for Verywell Health
This article discusses the causes and symptoms of a posterior pelvic tilt.
It also covers treatment, including specific exercises to try, as well as sleep and sitting modification options.
Hamstring tension, or engagement, plays a major role in having good balance and proper posture.
Hamstring issues, such as long-term tightness, can significantly contribute to a posterior pelvic tilt.
How Do I Know If I Have Posterior Pelvic Tilt?
An excessive backward tilt of the pelvis can negatively impact your posture and lead to associated pain.
Symptoms vary, but may include a slouched posture, hamstring tightness, back pain, and more.
Treatment often involves exercises that target specific muscles, as well as sleep position and sitting modifications.
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