The main danger of fiber optic stabbing in the hand is that it will cause severe pain, cause infection, and be difficult to remove. 1. Causes pain: optical fiber is glass fiber, and very fine, when using optical fiber must wear good protective measures, if accidentally stabbed by the light, will lead to severe pain, especially into the human body tissue. 2. Trigger infection: If the fiber optic is stuck into the hand under poor sanitary conditions, the wound site if not disinfected in a timely manner can easily cause infection, causing wound inflammation, which will increase the difficulty of fiber optic removal, so be sure to take good care of the wound in a timely manner. 3. Difficult to remove: usually fiber optic is transparent, so it is difficult to distinguish after entering the human body tissue, especially in the hand after a long time after the stabbing injury without surgery, at this time the fiber optic may also be with the human hand muscle tissue and other mobile, if it moves to the heart of the important parts of the heart may cause more serious injuries. Therefore, the human body in the occurrence of fiber optic stab wound, should be timely to the conditions of the hospital to remove. Fiber optic is a special material, the usual operation must be careful, and do a good job of protective measures, of course, after accidentally stabbing the skin, should promptly seek medical treatment.