Question
My father felt a lot of pain in his knee during the New Year, so he applied some ointment, and the pain gradually subsided, and he didn’t take it seriously. However, in May of this year, his knee started to swell, and the pain became extremely severe, prompting him to go to the hospital for a check-up. The doctor told me that this was osteomylitis.
Answer
Osteomylitis is often caused by stress-related damage to the periosteum and its blood vessels, which result from expansion, congestion, swelling, or subperiosteal hemorrhage. It can also be due to periosteal proliferation and inflammatory changes caused by purulent bacterial invasion.