Is this a bot fly larvae?


It is hard to say where the larva you found came from, and I agree it does look like cuterebra. Closer examination is needed to confirm. These larva typically fall/crawl out of the breathing hole in the skin of the animal that harbored it, so it obviously originated in an animal, but I don't know how it ended up on your bathroom floor.

It is not impossible for humans to get infected, but it is quite rare. To become infected, the fly (adult form) would have had to lay eggs in or near a wound.

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