Picosecond refers to picosecond laser, a kind of laser technology, the price of tattoo washing through picosecond laser can not be generalized, and the size of the tattoo and the choice of hospital and other factors, generally ranging from 500 to 5000 yuan, but most of the tattoos are difficult to achieve the desired effect through laser washing once, and it is necessary to carry out multiple treatments. Picosecond laser is a kind of laser technology, which is a commonly used method to remove tattoos by using specific wavelength of laser light to act on pigment particles in the skin and crush the pigment particles into fine powder to achieve the purpose of removing tattoos. The price of a single treatment of picosecond laser is related to the size of the tattoo, the hospital chosen, the patient’s physical condition and other factors, and it usually costs from 500 to 5,000 yuan. However, the effect of single treatment is limited, and multiple treatments are needed to achieve the ideal treatment, which usually needs to be carried out for 3 to 6 times with an interval of 1 month each time. Laser tattoo removal may lead to scarring, redness, swelling, pain and other adverse reactions. People with scarred body, mental abnormalities, photosensitive skin disease, serious bleeding disorder are not suitable for this treatment. It is recommended that patients in need of picosecond laser tattoo removal go to regular hospitals and choose the most reasonable program under the guidance of doctors to achieve the expected results and avoid unnecessary harm.