Objective To observe the changes of electrical property of the 12 Source-points in encephaloma patients undergoing surgery.Methods A total of 116 encephaloma patients and 60 healthy people who signed the informed consent were enlisted in the present study.The regional cutaneous electric resistance(CER) of the bilateral 12Yuan(Source)-points was measured in the afternoon(14:00-16:00) before and one week after surgery under room temperature [(22?3)℃,(55?10)% in humidity] by using "Meridian Energy Analysis Device".Results In comparison with normal subjects,CER values of the 12 Source-points on both sides of the body in encephaloma patients were significantly lower(P