Some of the microplastics pass seamlessly through the digestive system and are expelled in faeces, some microplastics are accumulated within bodily organs, and recent research has shown that some pieces cross cell membranes and enter the bloodstream.

一些微塑料无缝地通过消化系统并随粪便排出，一些微塑料在身体器官内积累，最近的研究表明， 一些碎片穿过细胞膜进入血液。