Important Notice

Copyright Notice

The contents available on this website, including but not limited to all text, graphics, drawings, diagrams, photographs and compilation of data or other materials are protected by copyright. The Department of Health ("DH") of the Government of the Hong Kong Special Administrative Region is the owner of all copyright works contained in this website.

To encourage a wider distribution of the health information, the DH would have no objection for users to disseminate or reproduce the materials on this website, provided that the DH is duly acknowledged and that the re-dissemination or reproduction is for a non-commercial purpose. Unless prior written authorization is obtained from the DH, any reproduction, adaptation, distribution, dissemination or making available of such copyright works to the public for commercial purposes is strictly prohibited.


The information contained in this website is provided by the DH for general information and reference only. While every effort has been made to ensure the accuracy of the information delivered in this website, the DH does not guarantee or warrant that such information is absolutely accurate, and the DH will accept no responsibility for any errors or omissions. Users should consult health professionals early if they have any medical condition or health problem.

Users who link from this website to sites provided by other organizations shall be aware that information on those sites has been compiled and issued by those organizations. Provision of such links does not imply that the DH approves or endorses the content of any such external sites. The DH accepts no responsibility for the contents of any site to which a hypertext link from this site exists and shall not be liable for any loss or damage arising from or related to its use.

Privacy Policy

Personal Data (Privacy) Statement

Technology Note

"Hong Kong Supplementary Character Set" is required for viewing some of the Chinese characters.

Adobe Reader is required for viewing and printing the Portable Document Format (PDF) documents. To download Adobe Reader, please click here. The appropriate Chinese font packs for Adobe Reader are also necessary for viewing some PDF documents. They are available here.