Mohs surgery is an innovative surgical treatment used to remove tumours that cause skin cancer without harming healthy tissue thus obtaining a higher cure rate than traditional surgery. Before removing the tumour, all affected tissue is analysed, including the border areas. This way the surgeon carries out a precise removal of the skin tumour, saving maximum healthy tissue, therefore minimizing aesthetic reconstruction after surgery. Mohs micrographic surgery is performed under local anaesthesia and is divided into several phases. In the first phase, the layer of skin affected by the tumour is removed. Then, a provisional cure of the wound takes place while the removed tissue and tissue samples from the tumour edges are analysed to confirm that it has been completely removed. This stage can last about 45 minutes. If the analysis reveals that there are still cancer cells, then the whole process is repeated again until a complete removal of the tumour is achieved.