The difference between minimally invasive surgery and open surgery is the surgical method, surgical trauma, post-operative pain level and post-operative healing recovery. 1. Surgical method: Minimally invasive surgery is mainly carried out with small incisions, and in most cases requires the application of specialized minimally invasive surgical instruments; while open surgery is to completely cut the skin in the surgical area and then carry out the surgery, with larger surgical incisions. 2. Surgical trauma: minimally invasive surgery mainly refers to small surgical trauma, not only the surgical area of the skin incision is small, but also in the treatment of diseased tissue on the surrounding tissue damage is small. For open surgery, not only is the incision larger, but there is also damage to the subcutaneous layers of tissue in the surgical area, so the overall surgical trauma is larger. 3. Post-operative pain: minimally invasive surgery is more traumatic than open surgery, so the post-operative pain is different, and in most cases, minimally invasive surgery is less painful. 4. Post-operative healing: Minimally invasive surgery has less overall surgical damage, so post-operative healing is faster than open surgery. There are many other differences between minimally invasive surgery and open surgery, each with its own advantages and disadvantages. You should choose the right type of surgery according to your condition and your doctor’s instructions.