Swelling at ORIF site.

Patient: Hello Doctor: I had a left forearm both bone fracture and surgery for this almost one year back with plate and screws still in. There is a 4 x 5 cm area of slight swelling on the ORIF site now for the past few days with very minimal pain. Can I know what this is? Kindly help. Thanks in advance. The area is a bit hard to palpate.

Symptoms: Swelling at ORIF site, left forearm.

Doctor: