Flatworms
* Parasitic flatworms: These are the most common type of flatworm that can cause harm. They include:
* Flukes: These live in the internal organs of humans and animals, such as the liver, lungs, and intestines. They can cause a variety of symptoms, including abdominal pain, diarrhea, and anemia.
* Tapeworms: These live in the intestines of humans and animals, feeding on digested food. They can cause weight loss, abdominal pain, and vitamin deficiencies.
* Schistosomes: These live in the blood vessels of humans and animals, causing a disease called schistosomiasis. This can lead to liver damage, kidney failure, and even death.
* Free-living flatworms: These are not parasitic and do not typically cause harm to humans or animals.
Roundworms
* Parasitic roundworms: These are the most common type of roundworm that can cause harm. They include:
* Ascaris lumbricoides: This is a common roundworm that lives in the intestines of humans. It can cause abdominal pain, nausea, and diarrhea.
* Hookworms: These attach to the walls of the intestines and feed on blood. They can cause anemia, weakness, and weight loss.
* Pinworms: These live in the intestines of humans, especially children. They can cause itching around the anus and sleep problems.
* Trichinella spiralis: This roundworm is found in undercooked pork. It can cause trichinosis, a disease that can affect the muscles, heart, and brain.
* Free-living roundworms: These are not parasitic and do not typically cause harm to humans or animals.
Note: While some flatworms and roundworms can be harmful, it's important to remember that many species are harmless and beneficial to the environment.
If you suspect you may have been exposed to a parasitic flatworm or roundworm, it's important to consult a doctor for proper diagnosis and treatment.