What should I do about this case?

First, this is not self-defense, but a fight between the two sides, so both sides will be detained.

Second, you spend 2400 yuan and he spends 4500 yuan. Theoretically, even if you go through judicial proceedings in the future, your compensation for him will be 2,000 to 3,000 yuan. The average judge will not spend too much time on such a small civil case. If you can mediate, you can't just judge so much.

Third, if it is a minor injury, there is no need to identify it. The key lies in whether his forensic identification will be minor injuries, because minor injuries involve criminal cases, and the whole thing will be more complicated.

Third, once the other party is slightly injured, it may involve intentional injury or negligent injury, and the civil appeal attached to a criminal case is much more complicated than what I said in the second point, and the compensation money is not what I said above, so if the other party is really identified as slightly injured, it is necessary to find a well-known local criminal lawyer. Such lawyers have a wide range of channels, you know what I mean.