your sewage pipe is broken and the worms are getting in it, crawling through the water trap and into the toilet bowl - call a plumber.
They are most likely larvae for a small fly. If you have gnats buzzing around dry it out and they will die off in short order.
My guess would be drain fly larvae.
black worm come from my dog faeces is first time I have seen!!
Black newts come out at night to prey on crickets, worms, insects, spiders, slugs, and millipedes.
Sperm can't come out through urine. Even if it could, you wouldn't be able to catch it from a toilet.
Toby worms are catalpa worms and appear on catalpa trees. They are a caterpillar type worm usually green with a black stripe down their backs. Great to use for catfishing.
To keep rats and other vermin inside the bowl .. some palces snakes come up through the toilet trap
Blood does not come from the toilet it comes from the body.
Yes they can. Worms are transmitted through fecal matter and if you cat is an outdoor cat, they can still come into contact of contaminated feces. If you think your cat has worms, take it to the vet with a fecal sample and they can test it to see if there are any worms.
Meal worms.
They can come from eggs that are already in the mix.
Worms do not come out in the sun because if they do come out in the sun, their skin will dry out. And if worms skin drys out they cannot breath and will die. The reason they would not be able to breath is because worms observe oxygen from the moist on their skin.
What does Cato ler worms look like
No, the sewer gases could come out and fill the attic and the rest of the house.