In the past, my classmates went to the army for physical examination, and many people recommended to go to Weifang Boya Plastic Surgery Hospital. The doctors there introduced several methods in detail: laser tattoo washing is to break the pigment particles into tiny particles and slowly withdraw them, which will not cause skin burns, and grinding is to grind off the pigment skin of the tattoo, which will not damage the skin or tissue, with good and thorough effect. Laser tattoo washing may take several times to completely remove. Tattoo polishing is a faster method. My classmate chose grinding because he was in a hurry to become a soldier. He recovered quickly and the effect was good.