Suppurative psoas abscess is an unusual lesion that is unfamiliar to many orthopaedic specialists, which can make an accurate and timely diagnosis problematic. The symptoms associated with this ...

Doctors determined a man's severe back pain was caused by a rare disease that leads to pus buildup in the psoas muscle. When you purchase through links on our site, we may earn an affiliate commission ...

When elite ultrarunner Mike Wolfe laced up for a tempo run in June 2009, his right hip flexor felt tender and sore. But nothing out of the ordinary for a runner who, in a weekend, can cover 75 miles ...