Why cant cell phones be used in hospitals?

Cell phones can interfere with medical equipment in hospitals.

Medical equipment, such as MRI machines and pacemakers, use electromagnetic waves to function. Cell phones also use electromagnetic waves. When a cell phone is used near medical equipment, the electromagnetic waves from the phone can interfere with the equipment's operation.

This interference can cause the equipment to malfunction, which could lead to serious injuries or even death. This is why it is extremely important to observe signs that prohibit cell phone use in hospital settings.