If they are not washed and prepared properly, the eggs may enter the digestive system.
Drinking contaminated water
Untreated water can sometimes contain infectious material.
Safe drinking water is particularly important in areas with inadequate sanitation.
Eating with unwashed hands
Children frequently touch soil, outdoor surfaces, toys, and other objects.
If their hands become contaminated and they put their fingers or food into their mouths, they may accidentally swallow parasite eggs.
Playing in contaminated soil
Children who play outdoors may come into contact with contaminated ground.
This is one reason handwashing is especially important before meals and after using the toilet.
Importantly, Ascaris infection is not usually spread directly from one person to another through ordinary physical contact. The eggs generally need time in the environment to become infectious.
3. What Happens After the Eggs Enter the Body?
The life cycle of Ascaris is surprisingly complex.
After a person swallows infectious eggs, they travel through the digestive system.
The eggs hatch in the small intestine, releasing tiny larvae.
These larvae then penetrate the intestinal wall and enter the bloodstream or lymphatic circulation.
From there, they travel toward the liver and lungs.
This migration through the body is an important stage of the parasite's development.
The journey through the lungs
After reaching the lungs, the larvae enter the air spaces and gradually move upward through the respiratory passages.
They eventually reach the throat, where they may be swallowed.
Once swallowed again, they return to the small intestine.
There, they mature into adult worms.
The complete development process takes approximately two to three months.
Adult worms can survive in the intestine for around one to two years.
During this period, female worms may produce enormous numbers of eggs, which leave the body through feces.
These eggs can contaminate soil and continue the infection cycle.
This complicated journey explains why Ascaris infection can produce symptoms involving both the respiratory and digestive systems.
4. Why Can a Child Vomit Repeatedly for Several Days?
Vomiting is a symptom with many possible causes.
In children, common explanations include viral gastroenteritis, foodborne illness, and other digestive conditions.
However, severe intestinal parasitic infections can also cause repeated vomiting.
When large numbers of worms accumulate inside the small intestine, they may interfere with normal intestinal movement.
The digestive tract may struggle to move food and fluid through the affected area.
This can result in symptoms such as:
-
Repeated vomiting.
-
Severe abdominal pain.
-
Abdominal swelling.
-
Loss of appetite.
-
Constipation.
-
Difficulty passing gas.
-
Dehydration.
-
General weakness.
If a complete or partial intestinal obstruction develops, vomiting may become persistent and dangerous.
In some cases, the patient may require hospitalization and specialized treatment.
It is important not to assume that prolonged vomiting is caused by worms without medical examination.
A child who vomits repeatedly for several days needs prompt medical assessment, regardless of the suspected cause.
5. The Warning Signs of a Heavy Intestinal Worm Infection
Intestinal parasites do not always produce obvious symptoms.
Some people may carry a small number of worms without realizing they are infected.
Others develop noticeable digestive problems.
The symptoms depend on the parasite species, the number of worms, the patient's age, and overall health.
Possible warning signs include:
Persistent abdominal discomfort
A child may complain of recurring pain around the stomach or abdomen.
The discomfort may be mild initially but become more severe if complications develop.
Loss of appetite
Some children may eat less than usual or complain of feeling full quickly.
Nausea and vomiting
Repeated vomiting may occur when the intestinal worm burden becomes substantial or when an obstruction develops.
Abdominal swelling
A noticeably swollen abdomen may indicate a digestive problem requiring examination.
Changes in bowel movements
Some patients experience constipation, while others may have diarrhea.
Poor growth and nutritional problems
Heavy or prolonged infections can interfere with nutrition and contribute to poor growth.
Coughing or wheezing
During the larval migration stage, some people develop temporary respiratory symptoms.
These may include coughing, wheezing, or breathing discomfort.
None of these symptoms alone confirms a worm infection.
Medical evaluation is necessary to establish the diagnosis.
6. How Can Intestinal Worms Cause a Dangerous Blockage?
One of the most serious complications of heavy Ascaris infection is intestinal obstruction.
Normally, the small intestine moves partially digested food through coordinated muscular contractions.
This process allows nutrients to be absorbed and digestive contents to continue toward the large intestine.
However, when many adult worms accumulate, they can form a dense mass.
This mass may block the intestinal passage.
As a result, food, fluid, and gas may accumulate above the obstruction.
The patient may experience:
-
Severe or worsening abdominal pain.
-
Repeated vomiting.
-
A swollen abdomen.
-
Inability to pass stool or gas.
-
Signs of dehydration.
-
Reduced bowel activity.
An untreated obstruction can become life-threatening.
In severe cases, complications may include reduced blood supply to the intestine, tissue damage, or perforation.
These conditions require emergency medical treatment.
Children with severe abdominal pain and persistent vomiting should never be treated with home remedies alone.
7. How Do Doctors Diagnose Intestinal Worm Infections?
Doctors use several methods to determine whether a patient has an intestinal parasite.
The appropriate tests depend on the symptoms and suspected complication.
Stool examination
A stool sample can be examined under a microscope to identify parasite eggs.