Legal analysis: Tattoos belong to medical beauty, and it is legal for people with medical beauty and plastic surgery qualification certificates to do them in places with medical beauty licenses. According to the provisions of the criminal law, a person who has not obtained the qualification of a medical practitioner illegally practices medicine, and if the circumstances are serious, he shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance, and shall also or only be fined.

Legal basis: Article 336 of the Criminal Law of People's Republic of China (PRC). If the circumstances are serious, those who have not obtained the qualification for illegal medical practice shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance, and shall also or only be fined; Those who seriously damage the health of patients shall be sentenced to fixed-term imprisonment of not less than three years but not more than ten years and fined; Whoever causes death shall be sentenced to fixed-term imprisonment of not less than 10 years and fined. In case of illegal medical practice, the parties concerned shall promptly report the case and report to the administrative department of health, and may claim damages if damage is caused to their lives.