Can Parasites Be Seen With the Naked Eye In Feces?
Parasites are organisms that live inside the body of another organism, known as the host, and feed off of its nutrients. Some parasites can be seen with the naked eye, but most need to be viewed with a microscope. So, can parasites be seen with the naked eye in feces?
The Short Answer
Yes, some parasites can be seen with the naked eye in feces. The most common parasite that can be seen without a microscope is the intestinal roundworm, also known as the pinworm. These worms are small, white, and measure about 1 to 13 millimeters (mm) in length. They are typically visible in the anus, on the surface of the feces, or in the toilet bowl.
The Long Answer
While pinworms can be seen with the naked eye in feces, other parasites may be too small to be seen. For example, the eggs of some parasites, such as hookworms, are too small to be seen without the aid of a microscope. Additionally, the eggs of parasites such as strongyloides and whipworms can be seen with the naked eye, but they may not be visible in all cases.
In order to determine if a person is infected with a parasite, a stool sample must be collected and examined under a microscope. This is the only way to detect the presence of parasites, as they are too small to be seen with the naked eye. A laboratory technician will be able to determine the type of parasite present and recommend the appropriate treatment.
Conclusion
Yes, some parasites can be seen with the naked eye in feces. The most common parasite that can be seen without a microscope is the intestinal roundworm, also known as the pinworm. However, in order to determine if a person is infected with a parasite, a stool sample must be collected and examined under a microscope.