Back ground: Poorly controlled diabetes can lead to micro vascular and macro vascular complications.  Knowledge and awareness about the complications of diabetes is the best way to prevent one from the complications of diabetes

Materials and Methods: A Cross–sectional study was conducted to determine the awareness about diabetic complications among 300 diabetic patients registered in NCD clinic of three primary health centres of Tirunelveli district using a predesigned pretested questionnaire  during Nov–Dec 2016.

Results: Among the 300 study subjects, maximum (64%) were aware about foot complications (neuropathy), 46.3% were aware about renal complications, 41.7% knew about cardio vascular complications, 36% were aware about high blood pressure, 33.3% were aware that it can cause eye problems and 15.3% were aware about stroke. 

Conclusion: Awareness about diabetic complications among the study population is less. Health care providers role in increasing awareness about diabetic complications need to be emphasized more.