It is very difficult to check the severity and clinical course of the toxicity in snake bite patients by virtes of clinical manifestation and laboratory tests. And we observed the findings of bone sean with ggmTc-MDP in two snake bite patients. First pati nt was bitten in the right ankle with local pain and swelling. The finding of bone scan of him was increased uptake of radionuclide in the soft tissue of right leg and thigh. Others were normal findings. Second patient was bitten in the right hand. But his symptom was severe and he com- plained local pain and swelling, nausea, blurred vision, and oliguria. The bone scan findings of secand patient was; Increased uptake of radionuclide in the soft tissue of whole body. Decreased uptake in the bone tissue, Renal outline was not delineated, Follow up study 10 days after, revealed more improved findings in the scan.