The mites that feed on hermit crabs won’t want a human host. While they won’t colonize your skin, and they won’t transmit any diseases or infections to a human, they can cause problems elsewhere. Mites found in hermit crab enclosures can get into some human food sources such as grains and flour, or they may get into books or other paper sources and damage them. While these mites won’t harm humans, they can cause problems in our houses.