Participants are invited to take part in this study because they have AGHD (only severe case). The purpose of this study is to assess long term safety and effectiveness of Sogroya® in patients with AGHD (only severe case) under normal clinical practice condition in Japan. Participants will get Sogroya® as prescribed by the study doctor. Participants will be in the study for about 2 to 5 years depending on when they take part in the study. Participants will be asked to fill in the quality of life questionnaires.