笔者自1985年以来改进美蓝染色标记法,用于瘘道标记效果较好,介绍如下:方法:术前1～2日向瘘道内注射适量1%美蓝溶液。外口用凡士林纱布等封闭,通过局部按摩和体位引流使药液充分进入深层瘘管.体表囊肿感染 The author since 1985 to improve the methylene blue staining method for fistula marking better, described as follows: Method: 1 to 2 days before surgery to the fistula injection of appropriate amount of 1% methylene blue solution. Outside the mouth with vaseline gauze and other closed, through the local massage and body drainage to make full access to deep fistula body surface cyst infection