That is a bed bug. Food grade diatomacous earth. Not harmful to things with bones. Read about it from the website here. Forum talks about diatomacous earth uses but it is recommended by authors on a Google search from https://richsoil.com/diatomaceous-earth.jsp and when one clicks on what is DE you come here. That is not a flea. I'm sorry. I'm being treated chemically or have to move. Used DE 3 mos. ago and must've missed somewhere cause found more last week. I still recommend DE just do not miss any baseboards and launder anything on floors or dust them as well. I have boxes and books that they must've made it into our curtains I just took down in my bedroom a week before their return! Now all Will be bagged and washed then dried in those too hot commercial dryers. If it ruins them ohhh well, rather kill these pesky buggers once and for all! My dog and lizard have to leave for the toxins on Monday. They were fine with the DE, so was I without a mask while applying but I don't have breathing issues where the dust can irritate. My caregiver isn't bothered by the DE either. A lizard would be susceptible if anything and his cage wasnt covered when I dusted heavily. Not a vet so I would cover cage if truly worried. Good luck! Again, I'm so sorry!Nicole alvarez wrote:Been waking up with bites of some kind and then I found this in the shower bathroom. I do have a dog so it would make sense.