Hip pain that occurs on the outside of the hip, buttock, and upper thigh may result from damage or injury to the muscles, tendons, and ligaments. Sitting for long periods or in certain positions ...

“The overall goal when trying to eliminate hip flexor pain is making sure that the ... are a group of muscles along the front of the upper thigh. They include the iliacus, psoas major, rectus ...

If it occurs in the thigh, it may feel like a person has a lump in their thigh, though symptoms may not be present at first. STS occurs in soft tissues such as the blood vessels, muscles ...