Diabetes mellitus requires regular self care behaviors. Nurse is responsible to teach the patient about appropriate self management (Smeltzer, Bare, Hinkle & Cheever, 2008). Physical and emotional stress could affect glycemic control negatively, so patients must learn how to balance among such factors. They should learn daily self care skills to prevent instability of blood glucose. In addition, patients must be aware about good nutrition by following a calorie- controlled diet (Smeltzer, Bare, Hinkle & Cheever, 2008). They should know that they might need additional meals and snacks during various exercises or at bedtime to prevent hypoglycemia. Also, patients must have knowledge regarding medications side effects and disease progression. Patients and family members should be taught about the symptoms of both hyperglycemia and hypoglycemia in order to be able to provide a required care . In conclusion, this essay has discussed a case study that has been chosen during the clinical practicum time. Mainly, it focused on one of current health problem in which the patient is suffering from, diabetes mellitus. It discussed the pathophysiology of the two types of diabetes, type-1 and type-2. Diabetes is characterized by a number of symptoms such as polyuria, polydipsia, weight loss, and polyghagia. There are many risk factors might cause diabetes such as obesity and sedentary life style. This paper has also presented statistical information regarding diabetes disorder throughout the world, it found that India is the highest country that account for the highest number of people with diabetes. Moreover, there are various diagnostic methods that are used to identify and investigate patients with diabetes or who are at high risk. Treatment strategies are varying with different types of diabetes. Type-1 is insulin dependent diabetes while type-2 is non-insulin dependent. Diabetes mellitus is considered a chronic disease that required regular appropriate care at home sitting. Community health nurse has a number of responsibilities regarding diabetic patients care include effective assessment and providing teaching plan that help the patient to maintain controlled blood sugar level. Finally, diabetic patients should be aware about daily self care.