Kanpo-Masterです 
http://content.nejm.org/cgi/content/full/357/13/e14
にきれいなpurple urineが載っています。
沖縄中部の先生方らによるコロッケ会（リンク先参照）
にも同様のpurple urineが載っています。
http://www4.atwiki.jp/croquette/pages/50.html
ほんとっ、きれいっす！
病棟でよく見ていると結構見かけます。
以下Student BMJから引用。
Purple urine bag syndrome was first reported in the 1970s, but it has long been recognised anecdotally in elderly patients. The purple discolouration of urine and bag is most often reported to be due to the indirubin dissolved in plastic and indigo crystals in the urine, which coat the bag surface. Urinary indican (indoxyl sulphate) is derived from metabolised tryptophan in the gut. Urinary organisms such as proteus, providencia, and klebsiella with indoxyl sulphatase activity metabolise indican to produce indigo, particularly in alkaline urine. Bile acids or steroidal conjugates can also cause purple discolouration. Apart from alarming visitors and medical staff, the colour may be of no clinical importance.
http://content.nejm.org/cgi/content/full/357/13/e14にきれいなpurple urineが載っています。
沖縄中部の先生方らによるコロッケ会（リンク先参照）
にも同様のpurple urineが載っています。
http://www4.atwiki.jp/croquette/pages/50.html
ほんとっ、きれいっす！
病棟でよく見ていると結構見かけます。
以下Student BMJから引用。
Purple urine bag syndrome was first reported in the 1970s, but it has long been recognised anecdotally in elderly patients. The purple discolouration of urine and bag is most often reported to be due to the indirubin dissolved in plastic and indigo crystals in the urine, which coat the bag surface. Urinary indican (indoxyl sulphate) is derived from metabolised tryptophan in the gut. Urinary organisms such as proteus, providencia, and klebsiella with indoxyl sulphatase activity metabolise indican to produce indigo, particularly in alkaline urine. Bile acids or steroidal conjugates can also cause purple discolouration. Apart from alarming visitors and medical staff, the colour may be of no clinical importance.