Between the ages of 6 months and 4 years, children tend to put things in their mouths, and sometimes they swallow them. Usually this poses no danger.
Some children can cough up the swallowed object.
In any case, most objects pass easily through a child's body without causing problems. The child could have neck or throat pain or problems swallowing. Vomiting, choking, coughing, noisy breathing, and belly pain are other signs. Care Treatment depends on the size and location of the swallowed object. If the object reaches the stomach, it probably will pass through the body by itself without causing problems.