Can I change departments because I have a waist injury when I am internship in the restaurant department of a hotel?

yes. According to the query of Hualv. com, employees can apply to the unit for post adjustment after being injured. The employer and employees can change the contents of the labor contract through consultation, but the change of the labor contract should follow the principle of equality, voluntariness and consensus, and must not violate the provisions of laws and administrative regulations.