Although the picture is a little blurry, we believe this is a drain fly larvae. Drain fly larvae often appear transparent with a black stripe running down their back. They have a black retractable head and a dark breathing tube. We are confident that this is a match for what our reader has been finding in his toilet:
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It is just not the appearance of this larva that has us convinced it is a drain fly larva. A toilet is very suitable home for a drain fly larva. These larvae feed on decaying organic matter, which there is plenty of in a dirty toilet! In order to get rid of these larvae, our reader needs to scrub out his toilet bowl. He should use a cleaning agent that targets organic matter and be sure to scrub thoroughly! Adult drain flies lay their eggs in the organic matter, and then the larvae feed on it. So, if our reader is able to get rid of all of the build up, he will successfully eliminate the breeding spot and feeding source, thus solving his “worm” problem!
In conclusion, one of our readers discovered some worms in his toilet bowl. We are confident these are drain fly larvae! However, he did mention he was worried they might be linked to his recent digestive issues. We don’t believe they are, but we are not medical professionals and can’t offer medical advice! So, if he is concerned about his health we encourage him to see a doctor.
All About Worms is always free, always reader-supported, we don't subject you to ads or annoying video pop-ups. But it does cost us money out of our pocket to keep the site going (nearly 20 years so far!) So your tips via CashApp, Venmo, or Paypal are appreciated! Receipts will come from ISIPP Publishing.