Question
Last night, while riding my bicycle home, I was blinded by a headlight from a car, collided with it, and after being lifted into the air, I fell to the ground. The left knee has a very severe bruise. Today, after returning home from work, the knee has become increasingly painful. It was hard to get up and walk, and now it’s starting to hurt again. What’s going on?
Answer
Considering your symptoms, and assuming there is no fracture in the knee joint, it is likely a joint capsule injury with fluid accumulation inside the joint. It is recommended to rest for 1-2 weeks, minimize activity as much as possible, apply a warm compress to the injured area with a towel to help absorb the fluid inside the joint. If the pain persists, it is advised to undergo an MRI to rule out damage to the meniscus and cruciate ligaments within the knee joint. Therefore, it is best to determine the cause of the condition and then treat accordingly.