At present, all over the world, about one hundred thousand uraemic patients, which is about 15 precent of the total dialysis population are accepting peritoneal dialysis treatment.

透析是通层天然的生物，腔中的透液和毛细管内的液之间进行水和溶质转运与交换的。前全世界约有10万名终末期透析患者接受透析治疗，约占透析人口总数的15%。