You are pre-diabetic. Yes, need change life style ! FBS is a fasting blood sugar - it is taken after a period of not eating for at least 8 hours - it should be between 70 - 100mg/dl. A PPBS is a post parandial blood sugar which means it is taken approximately 2 hours after you eat a meal. It too should be between 70 - 100mg/dl. If both are up, it is a good indicator for diabetes. If both are down, it is a good indicator that you are NOT diabetic If one if up and the other is down (doesn t matter which) it is an indicator that you could be pre-diabetic. To determine whether you have a normal metabolism, prediabetes or diabetes in one of three different ways - there are three possible tests: The A1C test (no data from you) - at least 6.5% means diabetes - between 5.7% and 5.99% means prediabetes - less than 5.7% means normal The FPG (fasting plasma glucose) test(the patient is 90.12mg/dl, normal) - at least 126 mg/dl means diabetes - between 100 mg/dl and 125.99 mg/dl means prediabetes - less than 100 mg/dl means normal An abnormal reading following the FPG means the patient has impaired fasting glucose (IFG) The OGTT (oral glucose tolerance test) -nodata from the patient. - at least 200 mg/dl means diabetes - between 140 and 199.9 mg/dl means prediabetes - less than 140 mg/dl means normal An abnormal reading following the OGTT means the patient has impaired glucose tolerance (IGT)