Tattooing is the application of pigment into the dermis of the skin to obtain certain patterns or permanent makeup effects. Common tattoos are eyebrow tattoos, eyeliner tattoos, lip tattoos, and some words and patterns on the upper limbs and torso. In recent years, the number of people requesting tattoo removal due to social climate change, fashion change and personal grooming or job search has been increasing, and laser tattoo removal has become one of the hot beauty items. 1.Past methods and drawbacks of tattoo removal? Early removal of tattoos often used chemical peeling, freezing, skin grinding and other methods, but the effect is not good, often leaving a scar, even more than the tattoo affects the beauty. Later, people tried to cover up the pigment with shades close to the skin color, but the effect was not satisfactory, and the covered area looked dirty and lacked the texture of the skin. Then for a long time the application of multi-functional ionization therapy instrument to remove pigment, the effect is improved compared to the above methods, basically can lighten the color of the text, but the disadvantage is that there can be left light brown pigment, cautery too deep will leave a scar. Surgeons often use the method of cutting off the skin with pigment, but even the best and most careful suturing will leave a thread-like scar. 2.What is the best way to remove tattoos? The emergence of Q-switched pulsed laser in the 1990s has provided a very ideal method for tattoo treatment. The high-energy Q-switched pulsed laser can cause instantaneous destruction of the lesion tissue without conducting heat to the surrounding tissues, i.e., the damage to the surrounding normal skin tissue is minimal, which can achieve the magical effect of “taking chestnuts from fire”, thus It can achieve the miraculous effect of “taking chestnuts from the fire”, thus solving the fatal shortcoming of the previous beauty treatment instrument that “burned all without distinguishing between the enemy and me” and inevitably left scarring due to injury to the dermis. Achieved the perfect unity of effectiveness and safety. 3.The skin reaction after laser irradiation? Immediately after laser irradiation, the tattoo site is grayish white, indicating that the thermal expansion of the pigment particles crushed, which can last for a dozen to dozens of minutes; after the operation, the trauma scab, after 1 to 2 weeks to fall off on their own. General tattoo 1 to 5 times can be removed, two treatment interval of 3 months. 4.Is laser treatment available for traumatic tattoos? The permanent pigment spots formed by the fine foreign particles buried in the dermis after trauma are called traumatic tattoos or accidental powder deposition, and the coarse pigment particles on the surface of the skin can be treated by grinding first (ultra-pulsed CO2 laser grinding is available) and then by Q-switched laser. The combination of ultra-pulsed CO2 laser and Q-switched laser therapy for traumatic tattoo treatment can significantly shorten the treatment course with satisfactory results and few side effects.