My usb is missing can you please help me

Please explain 'missing' - If something is missing, generally it's lost and you go out and buy another one. Do you mean that your computer isn't recognizing some hardware attached to a USB port?

It is normally on the side of the computer, did it break ? Did you buy a computer without one, or is this something else. I have USB memory cards, I have USB connectors, I have USB connections for cameral, mouse, video and more