• CHB defined as positive hepatitis B surface antigen at least 6 months, or HBV-related histological changes within 1 year if HBsAg positive less than 6 months.

• Age between 18-80 years.

• Patient who reads and signs informed consent.

• Meet any conditions of the group listed below

‣ Group A-naïve and meeting the conditions that are recommended to initiate treatment in 2022 Chinese Guideline, but not in 2019 Chinese Guideline (observe-plan to treat or control-plan to follow-up) :

‣ A. HBV DNA positive, ALT is continuously upper limit of normal (male 30 U/L, female 19 U/L) B. HBeAg positive, HBV DNA≤2×10\^7 IU/ml; HBeAg negative, HBV DNA≥2×10\^3 IU/ml C. Meet any of the conditions listed below

⁃ Age\>30 years, and have a family history of cirrhosis or HCC, TE indicates no significant fibrosis;

⁃ Family history of cirrhosis or HCC, and ≤30 years, TE indicates no significant fibrosis;

⁃ TE indicates significant fibrosis, and ≤30 years, without family history of cirrhosis or HCC

‣ Group B-naïve and meeting the conditions that are recommended to initiate treatment in both 2019 and 2022 Chinese Guidelines, but not in EASL or AASLD guideline (observe-plan to treat or control-plan to follow-up) :

‣ A. Without cirrhosis, HBV DNA≤2000 IU/ml, ALT\>1 ULN； B. Without cirrhosis, HBV DNA\>2000 IU/ml, 1 ULN\<ALT≤2 ULN； C. Without cirrhosis, normal ALT, \>30 years, have a family history of cirrhosis or HCC, or TE indicates significant fibrosis; D. Without cirrhosis, HBV DNA 20-2000 IU/ml Group C-experienced and partial response (1. switch another first-line NA; 2. add-on another first-line NA; 3. switch another first-line NA and add-on peginterferon alpha; 4. continue the original plan) Treatment experienced patient who has received a first-line nucleos(t)ide analogue(NA) monotherapy for at least 48 weeks, i.e., entecavir, tenofovir disoproxil or tenofovir alafenamide, tenofovir amibufenamide, and has partial response. They plan to continue or change the therapy