"Left SRs" refers to the left-sided sacral region of the human body, which is part of the spine located in the lower back. This area is significant in anatomy and can be associated with various conditions, such as pain or discomfort. Understanding the left sacral region is essential for diagnosing and treating issues related to the lower back. In medical contexts, "Left SRs" may also refer to specific sacroiliac joints or nerves on the left side that can impact mobility and sensation. Proper assessment of this region is crucial for healthcare professionals when addressing musculoskeletal problems or injuries.