A male’s foot is being shot by an ulcer, not a gunshot! The magnitude and associated factors of diabetic foot ulcer among diabetes mellitus patients on chronic care follow-up of southwestern Ethiopian hospital: A cross-sectional study

•Diabetic foot ulcer is one of the main complications in diabetes mellitus.•Diabetic foot is defined as the presence of infection, ulceration and/or destruction of deep tissues.•Diabetic foot ulcer is a major cause of infection and lower extremity amputations in diabetic patients.