[en] In 1977, Ahlberg saw the need to stop the vicious circle of target joints seen in hemophiliacs which causes lifelong disability and interrupts the physical and social activities of the child by this procedure. Over the decades, it has gained acceptance by providing a simple, economic, and effective therapy for them. Radiosynovectomy by injecting radionuclides intraarticular space is well established as an alternative method to decrease joint hemorrhage episodes and to prevent arthropathy in hemophiliacs. Radiosynovectomy presents with a therapeutic effect of 60%-94% for hemophilia A in several studies; our study showed 80%. Radiosynovectomy is a minimally invasive, well-tolerated procedure that can be done on an outpatient basis