“…Result from the longer and extensible umbilical incision of LESS, myomas can be removed with in-bag cold knife, avoiding the use of cumbersome closed rotary cut bag, [5,18] furthermore, avoiding the pelvic and abdominal implantation of occult sarcoma and disseminating uterine leiomyoma caused by breaking myoma with electric rotary excision instruments, conforming to tumor-free principle, especially suitable for myomectomy. LESS-M includes almost all of the basic laparoscopic operation skills, like cutting, [19][20][21] hemostasis, suture, and knot, which is challenging to novices.…”