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Introduction Frozen shoulder (FS) or adhesive capsulitis is a constellation of symptoms like pain, stiffness, and/or functional deficit at the glenohumeral joint. It is one of the musculoskeletal complications in patients with diabetes that can be particularly debilitating. The aim of this study is to estimate the prevalence of FS and to compare the determinants of this disease in a population with diabetes from Lahore, Pakistan. Materials and Methods We carried out this cross-sectional study on a systematically randomized sample of 80 patients with diabetes. It included 38 males and 42 females from 2,964 patients registered at the Diabetes Management Center, Services Hospital Lahore, Pakistan. The study was conducted in the months of April, May, and June 2017. A structured questionnaire was designed and the responses of patients were recorded at the clinic after informed verbal and written consent. The questionnaire outlined the key factors that can lead to a higher frequency of FS in patients with diabetes. Results Thirty-three of the total 80 respondents included in the study were diagnosed with FS. The estimated prevalence of FS in diabetics from this data was 41.3% in Lahore, which is an urban area of Pakistan with a population of more than seven million. Female sex, insulin dependence, uncontrolled blood glucose levels, and a positive family history were associated with a significantly higher prevalence of FS. In our study, most patients with FS were in Stage 1 of the disease and had unilateral involvement. Conclusion The present study shows that the prevalence of FS is higher in patients with diabetes residing in Lahore than in comparable foreign populations with diabetes. It can be attributed to socioeconomic status, lack of awareness, a higher threshold for diagnosis, and/or poor glycemic control. Mass awareness campaigns, especially for female patients with diabetes, are required to be initiated to create awareness about the disease and to facilitate early diagnosis and appropriate management. In-depth and multicenter studies are needed to further explore the association between FS and diabetes.