How to handle two bone contusions in the joints caused by a return run

Patient's question:

Patient Information: Male, 25 years old, Jilin, Jilin
Condition Description (onset time, main symptoms, etc.): The injury was caused by a sprinting motion, resulting in a contusion to the knee bone. The patient went to the hospital for an MRI, which revealed fluid accumulation in the joint. Some blood-activating medication was prescribed, but there was no improvement after a few days, and the condition worsened. The veins around the knee are now swollen.
Desired Help: How should the condition be treated? What is the cause of the vein swelling?

Doctor's answer:

From the situation you mentioned, it seems that this is due to swelling of blood vessels after a knee ligament injury. In this case, if the medication is not effective, and there is some relief in the condition, it is recommended to have a follow-up examination to assess the extent of the joint damage. If necessary, surgical treatment can be considered. Additionally, combining treatments with blood-activating and blood-stasis-dispersing medications would be beneficial.