Fleas are dirty insects that cling on to our pets. When you dream about fleas, the dream denotes sickness and minor irritations. After the fleas dream, you will feel the need to deal with both new and old troubles.
The meaning of fleas in dreams varies around the world. In some permutations, it refers to life draining energy that a person didn’t need to expend and put on a pointless pursuit; there is a feeling of irritation due to these entity living or burrowing out at you while you are trying to sleep.
Another common interpretation would be that the fleas symbolize some kind of life stress, with lots of misery and aggravation. The dreamer could believe that the fleas might refer to their microbes seeing as how their bodies are filled with usurious rubbish and waste products.