Scars are also living marks that appear where deep wounds appear, grow during the healing process, and fall off when the scars mature. Generally speaking, scars on superficial skin will naturally mature and fall off, but if the injury has reached the real skin or has broken a bone, the scar will be accompanied by being in the growth phase all the time. Scar softening injections are used to promote the maturation of scars by injecting medication, which will eventually soften and remove the scars. Scar injections are one of the non-surgical treatments for scars, but scar injections are not effective for all scars. They are effective for prominent scars and scars that are in the proliferation phase of scar growth. For mature scars, on the other hand, scar needling is not suitable. To repair mature scars, it is mainly necessary to remove them with the help of surgical treatment or with laser compound treatment. Together with super tension reduction fine suturing, the recovery can improve the scars to a great extent. Precautions for treatment with scar needles: 1. Ensure that the scar needles treatment area is clean. 2.Avoid eating irritating food such as chili pepper after scar treatment. 3.Follow the doctor’s advice strictly and follow up the consultation on time after scar treatment