Knowledge in the field of health: 1, which violates the basic principles stipulated in the Constitution; 2. Endangering national security, revealing state secrets, subverting state power and undermining national unity; 3, damage the national honor and interests; 4. Inciting national hatred and discrimination and undermining national unity; 5. Destroying the state's religious policy and propagating cults and feudal superstitions; 6. Spreading rumors, disrupting social order and undermining social stability; 7. Spreading obscenity, pornography, gambling, violence, murder, terror or abetting crimes; 8. Insulting or slandering others and infringing upon their legitimate rights and interests. Non-personal works that may involve copyright disputes; 10, which contains other contents prohibited by laws and administrative regulations.