<prompt> Bedsore is an example of:Tropical ulcerTrophic ulcerVenous ulcerPost thrombotic ulcer  <response>: Ans. b Trophic ulcer Bedsore is a pressure ulcer. Most common in sacrum site due to persistent pressure in the back. This is a type of trophic ulcer. This can be prevented by frequent change of positioning of the bedridden patient and using WaterAqua bed. Once bedsore is formed it is difficult to treat. Treatment extends from local wound debridement to flap procedures. 