<s>[INST] what is the normal level for men for sgpt. my sgpt is 53 which is changing sometimes little less and little more . what is the reason for this. I had slight jaundice and urine infection, fever some 5 to 6 months back. I was on medication.why it is not becoming exact normal level.I am 51 years old. [/INST] Hello welcome to Chat Doctor. Thank you for posting your query. SGPT is serum lunatic Pyrrhic oxalocetic transaminase, a liver enzyme helps in diagnosing liver functions. The normal levels are 5 - 40 IU/L. Thses liver enzymes are increased in fatty liver, viral hepatitis A, B,C and hematologic Chat Doctor.  As you have the past history of jaundice and fever, there are chances for developing liver problems again. I would suggest you to consult gastroenterologist for further evaluation. Hope I have answered your question. </s>