IPhone 5S over heat issue

My iPhone 5S always getting hot.please help

Is it overheating while you're using it or when it's sleep?

Overheating to where is shuts down?

That can happen when being intensely used... or left in the sunlight on a car seat... if it happens under 'normal' use - you may have a hardware issue that needs attention.

Welcome to iMore iDrizzy

Poor signal strength can also cause heating