Osmidrosis could have not cured completely with non-surgical treatment. Surgical methods are most effective but they usually make visible scar and complications. So less-invasive methods as liposuction assisted operation are performing broadly. However, contact burn had occurred by frictional stress of liposuction cannula. Several manufactures are commercialized for skin protection but they makes visible scar due to their large size. Therefore we had designed a device for skin protection using a straw. Regarding the method we have used, the end of sterilized straw into 4 strips for fixation to skin was divided. And skin incision about 7mm was performed and the straw was inserted through it. Fixation suture was done to each 4 strips by nylon 4-0. During liposuction, the cannula was inserted through the straw. After operation, straw was removed and subcutaneous suture is done by PDS 5-0, skin closure is done by Dermabond? (Ethicon, USA). Remarkably lesser scar had ranged from 7mm to 10mm had developed. And most patients had been satisfied with invisible scar. Using this device at the treatment of osmidrosis by liposuction, it is not only effective for skin protection but reduces length of incision scar.