Intestinal parasites or worms which infest human beings are found in all parts of the world. They are widely prevalent during the rainy season and are mostly common in tropical and subtropical areas. Usually children often get infested with intestinal worms than adults.
Some of the important symptoms of worms -
1. Due to round worms there is an inflammation of the intestine and lungs, loss of weight, fever, nervousness, irritability, nausea and vomiting.
2. Diarrhea is the main symptom of worms. Some other symptoms are dark circles under the eyes, constant desire for food, anaemia, headaches, foul breath and restlessness at night with bad dreams.
3. There may be intense itching in the area around the rectum. Due to presence of hook worms the person may suffer from anaemia and nutritional disorders. The eggs of these parasites are entered into the human body through the medium of water and food.