It's huge. Tiger's mouth acupuncture is usually performed when hand injury needs to be sutured. Due to the dense distribution of nerve and blood vessels in the hand, attention should be paid to protecting the function and appearance of the hand when sewing needles in the tiger's mouth. When sewing a needle in a tiger's mouth, the doctor needs to disinfect and anesthetize his hand, then align the wound with a scalpel and suture, and finally sew it up. During the whole process, attention should be paid to aseptic operation and fine technology to avoid causing greater damage to the wound. It should be noted that due to the dense distribution of nerve and blood vessels in the hand, appropriate suture lines and suture methods should be selected when suturing the tiger's mouth to avoid excessive damage to the hand. At the same time, proper care and protection should be given to the hands after operation to avoid infection and re-injury. So it is difficult for a tiger to sew a needle in its mouth.