Osteosarcoma symptoms in the tibia

The tibia is the larger lower-leg bone and meets the knee and ankle. A tumour in this region may cause deep pain or a firm swelling near the knee or along the shin. The area may feel tender, and movement can become uncomfortable. Some people notice a limp before seeing swelling. Shin pain has many explanations, including overuse, a stress injury, infection, or another bone condition, so the pattern and examination matter more than one symptom.

Make a medical appointment for pain that does not settle, swelling that is new or enlarging, or trouble walking without a clear explanation. Record whether pain follows activity, occurs at rest, or affects sleep. The clinician may examine the knee, ankle, and circulation in the foot and arrange an X-ray or other scan. A suspected tumour should be assessed by a specialist team before biopsy. Treatment may involve [Chemotherapy](/treatments/systemic-therapy/chemotherapy/) and [Tumour Removal Surgery](/treatments/surgical-oncology/tumour-removal-surgery/).

Seek prompt review for a persistent lump, increasing pain, or a limp. Seek urgent help for sudden severe pain, inability to bear weight, a visibly bent leg, a cold or pale foot, or new numbness. Such signs may reflect a fracture or a circulation or nerve problem and need immediate attention.

Is the pain centred in the tibia, knee, or soft tissue? What imaging can clarify the cause? Should I change weight-bearing or exercise now? If a biopsy is needed, which specialist team will coordinate it?