black worm in toilet

A Detailed Guide About What Are The Causes Of Black Worm In Toilet? And How To Get Rid Of Them?

by abdul waheed

Last Updated on February 15, 2023 by

Black worm in toilet

In your toilet, there are a variety of worms that really can live. They come in various colors, shapes, sizes, and circumferences. All of these appear to be equally revolting! Because there are so many different kinds of worms in toilets, it’s not uncommon to see them. Not many of them are harmful to your health, and the reasons for their appearance may vary. The four major worm species you’ll come across are:

  • Earthworms
  • Bloodworms
  • Worms that feed on horsehair
  • larvae of dry flies


Earthworms are soil-dwelling worms that eat organic materials. They have a tubular appearance and can be found in many different parts of the world. They are entirely harmless to humans and cannot damage them. Earthworms are thought to be extremely useful to agriculture. They transport organic stuff deep into the soil, improving its quality.

Their excrement is also high in plant nutrients. Organic gardening would be considerably more difficult, lacking earthworms. It’s unlikely that earthworms will emerge in your bathroom, but it might happen. These worms in the toilet usually indicate a broken sewer pipe.


Another bug that might be discovered in the bathroom is bloodworms. They are easily identified by their vivid red hue, for which they are named. Bloodworms are the larvae of the beetle fly, not worms. They don’t require a lot of oxygen since their blood contains a lot of iron-porphyrin protein. This is why they can live in contaminated, muddy water with low oxygen levels.

Worms made of horsehair

Despite their name, horsehair worms are anything but cute. Cockroaches, grasshoppers, insects, and crickets are parasitic worms that reside inside them. They aren’t parasitic on humans, pets, or cattle, so don’t be concerned. Horsehair worms are long and skinny, making them easy to identify.

Where can you find worms in the toilet?

Worms are available in a wide range of sizes and colors. They’re easy to identify most of the time, but do you know why they’re in your toilet in the first place? The following are the many types of worms commonly found in this occurrence. Allow us to demonstrate how to identify which species are there and their color and size.

What happens if the toilet is filled with black worms?

Bloodworms are typical household pests that can be placed near any water source in your home, such as sinks & bathtubs. Bloodworms get their names from the brilliant red color of their bodies caused by hemoglobin. These pests are tiny and can reach a length of a few inches.

What is the best way to get rid of black worms in the toilet?

An infrequently occupied toilet is ideal for bloodworms since they thrive in stagnant water. Because they feed on organic stuff in your toilet, the best approach to get away from them is to eliminate them from the bowl and completely clean the toilet. They will no longer consider your toilet bowl an acceptable environment once they have run out of organic materials to eat.

Because earthworms are most likely a sign of a plumbing crack, this is something that professionals should examine to eradicate the problem. Horsehair worms are long, black worms with about the same thickness as horsehair. Horsehair worms coiled into a ball can be seen. This bug most likely entered your house or toilet through a cricket or cockroach that ate a string of eggs from a nearby pond.

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On the other hand, horsehair worms are not as prevalent as other forms of worms. They’re most likely to be seen as the temperature cools and insects seek shelter indoors for warmth. Horsehair worms cannot enter your property if it is adequately sealed at all times.

When a sink is not in use, it’s a good idea to dry it. Yes, it appears fussy; after all, sinks have faucets, so getting wet is only natural. However, those droplets can attract worms and drain flies, so rinse the sink and dry it off after using the bathroom or brushing your teeth.

Tiny black worms or larvae

Drain fly larvae are small black worms that might be seen in your toilet. Because these pests feed on sewage and decaying debris, your toilet is an ideal habitat for them. Adult females deposit significant clusters of embryos, which illustrates why your toilet may have many worms.

In what ways can infestations be avoided in the future?

There is no certainty that worms or other pests will not reemerge in most cases. Some preventative steps, however, can be taken. Although the exact protection varies depending on the species, there are a few everyday actions. Worms usually appear when there is stagnant water that isn’t moving. This is usually the very same environment that mold and mildew thrive in. You can avoid the accumulation of organic matter by ensuring that all water supplies are used regularly. At least once every several days, flush the toilets you don’t use. Also, do not leave your bathroom damp for an extended period.

Are black worms harmful?

Black worms, also known as Tubifex worms, are a type of segmented worm commonly found in freshwater environments. While they may be a popular food source for some fish species, many people wonder if they harm humans. The answer is, generally speaking, no. Black worms are not known to be harmful to humans in any way, although they may cause some discomfort if ingested accidentally.

However, it’s worth noting that the presence of black worms in water can signify pollution or contamination. These worms feed on decaying organic matter and are particularly attracted to environments with high levels of organic waste. Therefore, their presence in large numbers can indicate a water quality problem that could harm both humans and other aquatic species.


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