Diabetes Mellitus is a chronic disease that affects multiple systems of the body, including the skin. Cutaneous manifestations of diabetes mellitus generally appear subsequent to the development of the disease, but they may be the first presenting signs and, in some cases, they may precede the primary disease manifestation by many years. The purpose of this study was to calculate the frequency of cutaneous manifestations and complications in patients with diabetes mellitus. This study is a prospective study for one hundred patients with diagnose and un diagnose cases of DM and having skin lesions that either attending the Diabetic Center, or Dermatology Outpatient at Al-Gamhoria Teaching Hospital, during the period April - December 2014.Pre-designed and pretested Performa was filled after taking informed consent .Among one hundred diabetic patients, there were 39% males and 61% females. The age of the patients ranges from 13-75 years, with a mean age were 49.6± 13.37 years .Among cutaneous disorders, commonly associated with diabetes, infections (51%) were the most prevalent and among this group the fungal infectious diseases topped the list (65.4%) followed by pruritus (18%) .Various associated complications has been noted, in which neuropathy was the most commonly found (35%) followed by hypertension (27%) then retinopathy (17%).One should be vigilant enough for the cutaneous manifestations as they are the window to the systemic illness.