EMPLOYEE STATED WAS ATTEMPTING TO CLEAN A SCREEN AND WHEN REMOVING THE WEIGHT OFF THE SCREEN EMPLOYEE'S FOOT SLIPPED CAUSING EMPLOYEE TO LOSE BALANCE CAUSING PAIN IN SHOULDERS AND PAIN IN THE STOMACH AREA. EMPLOYEE WAS DIAGNOSED WITH A HERNIA AND WILL HAVE SURGERY 4-11-2018. BEGAN MISSING WORK ON 4-2-2018.