How do you tell the difference between pinworm and tape worm and if you have it in your stomache?

Answer 1

Tape worms can be distinguished from pin worms in that they are flat and long.

The only way is to have a doctor put a camera down your throat into the stomach. There may be other tests (stool samples are one example) but any of them require seeing a doctor. Unless of course you have the stomach (LOL) for testing your own stools and have access to a microscope and the training to use it.

Pinworms come out at night to lay eggs. They cause noticable discomfort when they do this. They are about 1-3 mm long, thin and white. They can be caught rolling tape across the anus. Requires meds for treatment or at the very least stringent hygene to avoid reswallowing eggs and prolonging the infection.