Blood came from the knee twice

what is the treatment of knee injury :
1. consult orthropidic surgery doctor to determine the medical tests and treatment pathways 
2. after finding out the cause , you can start using pain and swelling managment means such as 
a. applying ice packs on the swell parts 
b. having a plenty of rest 
c. avoid any stress physical event for the injuried part 
d. use pain killer typical and oral medication such as brofen ( oral ) and locagel ( topical ) 
3. medication to decrease swelling and injuries inflammation such as chymotrysin and diclofenac
4. if the main cause are injury and there is any knee ligaments injuries , treatment may be conservative or surgical as what the medical condition status need 
5. if the causes are a chronic medical disease ( which usually have symptoms on other areas ) , doctor will start treating the main illness first and knee swelling are supposed to be relieved or better after treatment 
what are the signs and symptoms may accompany this condition :
1. swelling 
2. pain 
3. reddness 
4. stiffiness 
5. brusing 
needed medical examnations :
1. clinical check by doctor 
2. x- ray image 
3. MRI image 
4. knee aspiration