This includes the sacrum, coccyx, ilium, ischium, and pubis. The type of pelvic fracture a person has may depend on the trauma impact, which can range from mild to severe.

“A sacral stress fracture is more than an overuse injury. Energy deficiency is taking place,” says Dr. McCluskey. Energy deficiency occurs when the energy you’re expending is greater than the energy ...

Despite the string of cases among elites, sacral stress fractures remain relatively rare, striking an estimated 1 to 4 percent of runners, says Kevin Vincent, M.D., Ph.D., director of the ...