Mr Higman's principle practice is in vascular and paediatric surgery, although he is also a trained general surgeon. He has wide experience in the management of all forms of varicose veins and their complications. This includes the use of modern minimally invasive methods of treating veins such as radiofrequency ablation, foam sclerotherapy and microsclerotherapy for thread veins. Mr Higman also treats circulatory problems affecting the legs, aortic aneuysms and carotid disease for the prevention of stroke. Mr Higman is one of the designated paediatric general surgeons for Coventry and Warwickshire and treats a wide variety of surgical conditions affecting children.