Patients with mid- to late-stage colon cancer tend to develop peripheral and skeletal metastases from colon cancer lesions. Skeletal metastases are more common in the pelvis and spine, and even in the bones of the extremities.
When tumor cells colonize the bones, they can cause destruction of the bones. Therefore, some patients will present with symptoms of back pain, pelvic pain, limb bone pain with swelling, and other back and leg pain, or even fractures, and then a series of tests will confirm the diagnosis of bone metastasis from colon cancer.
When bone metastasis occurs, the symptoms of low back and leg pain are more serious, and general pain medications cannot achieve analgesic effects, and some patients even develop pathological fractures such as lumbar spine fractures and limb fractures under mild external forces.