Introduction: Soft flesh losses is one of the most frequent consult’s reasons in traumatology’s emergency wards. Soft flesh is the area of the finger with higher density of sensorial endings, which constitute the first link between our central nervous system and the external environment in terms of tactile sensation.
Objective: to remark the advantage of the use of Pectoral fasciocutaneous flap through a Case Presentation. Case presentation: patient suffering a soft flesh traumatic loss of the tactile pad of the thumb, reviewing the morphophysiological specificities of surgery area and procedure.
Conclusions: it is concluded that Human Morphophysiological knowledge are important in several medical-surgical procedures.

Keywords: Surgical flaps, thumb, traumatic amputation, pectoralis flap, fasciocutaneous flap.