A splinter in the finger should be removed promptly and sterilized to prevent infection. After the splinter is inserted, the peripheral skin should be disinfected with iodophor or 70% alcohol, the splinter should be removed and disinfected again, but it is necessary to pay attention to what type of splinter it is, especially metal splinters should be injected with tetanus vaccine to prevent infection with Clostridium tetani. If the splinter is difficult to remove or part of the splinter is left in the finger, you should go to a regular hospital in time and remove the splinter with the help of a professional doctor to maximize your quality of life and prevent infections and other undesirable complications due to the splinter being left behind or irregular treatment.