At 40 years old you may have roundworms in your stomach.
Ascaris lumbricoides is a kind of invertebrate, is a common parasitic nematode in human intestinal tract, the main source of infection for ascariasis patients and infected people. The source of infection can be a large number of eggs with the feces together with the body, can be contaminated vegetables and soil, in the appropriate temperature and humidity, after about 2 weeks, the development of mature eggs. After being ingested and consumed by the human body, they will enter the small intestine and hatch and develop into larvae.
Regardless of age, as long as the intake of roundworm eggs will occur roundworm parasitism, parasitized by roundworms are prone to fever, general malaise, urticaria and other symptoms, but also induced by chest pain, respiratory distress and cyanosis, the serious cases can be intestinal obstruction and peritonitis, a serious threat to human health.
As long as there is a history of unclean diet, roundworm parasites can appear in the intestines as well after the age of 40. It is important to make sure that the ingredients are safe during food intake to avoid unnecessary health effects of unclean diet.