The scope of this article is to estimate the prevalence of microvascular complications of self-reported type 2 diabetes and the association with sociodemographic characteristics, nutritional status, treatment given and time since diagnosis. It involved a cross-sectional study with 318 people with type 2 diabetes living in Maringá in the State of Paraná. A telephone survey of self-reported morbidity was conducted in the months from January to June 2012. For the analysis descriptive statistics, univariate and multiple logistic regression were used. The prevalence of self-reported complications of diabetes was 53.8%, the most frequent being retinopathy (42.8%), followed by peripheral neuropathy (14.5%) and nephropathy (12.9%). The variables associated with the presence of complications were age (p = 0.008), overweight/obesity (p = 0.002), insulin (p < 0.001), insulin use linked to oral antidiabetic drug (p = 0.003) and time since diagnosis (p = 0.013). The prevalence of self-reported microvascular complications for people with diabetes was high, being more frequent among those of more advanced age, with inadequate nutritional status, a delay in diagnosis of the disease and those who were using insulin alone or in combination with oral antidiabetic agents.