Question

before 1982 if a small child swallowed a penny, doctor would generally advised to just let it pass why?​

Answer 1

Answer:

Button batteries can burn a hole in the lining of the stomach within hours. And pennies issued after 1982 contain corrosive zinc that can damage the esophagus. If your child has swallowed either of these, take them to the ER immediately.

Answer 2

Answer:

Because no operation nor medicine