Which xi-cleft point is used for treating acute contraction and sprain of the lumbar region?

The xi-cleft point that is particularly effective for treating acute contraction and sprain of the lumbar region is located at SI-6. This point, known as "Yanglao," has clinical applications in the management of conditions associated with the lower back, especially those characterized by pain and stiffness due to acute injury or strain.

The selection of SI-6 is rooted in its function of regulating the flow of Qi and blood in the region, and it is especially effective for alleviating symptoms associated with acute conditions. By promoting circulation and relieving tension in the lower back, this point aids in alleviating pain and improving mobility.

While other points may also have relevance for lumbar issues, SI-6 is specifically utilized for acute conditions involved with contraction and sprain, making it the most suitable choice.