Chronic wounds are defined as those that have failed to heal after three months. There are various intrinsic and extrinsic factors that may result in the development of chronic wounds, including comorbidities such as diabetes mellitus and venous insufficiency, and lifestyle factors such as obesity, alcohol consumption and smoking. Chronic wounds represent a significant burden on healthcare resources and can have a negative effect on patients’ quality of life. This article discusses the assessment and treatment of non-healing chronic wounds. It examines the normal wound-healing process and the management of chronic wounds, including advanced interventions such as electrical stimulation therapy, negative pressure wound therapy and various dressings. This article does not focus on specific wound types; instead, it provides an overview of the factors that can lead to the development of chronic wounds and how these wounds can be managed in clinical practice.