Influence of Adherence to Growth Hormone Therapy (GHT) With Norditropin® on Near Final Height in Patients With Growth Hormone Deficiency (GHD) and Born Small for Gestational Age (SGA)

Inclusion Criteria: * Informed consent of parent or legally acceptable representative of subject and child assent, as age-appropriate must be obtained before any study-related activities. 1. The parent or legally acceptable representative of the child must sign and date the Informed Consent Form (according to local requirements) and 2. The child must sign and date the Child Assent Form or provide oral assent (if required according to local requirements). * The decision to initiate treatment with commercially available Norditropin® FlexPro® has been made by the treating physician and the patient's parents/legal guardian before and independently of the decision to include the patient in this study. * Male or female, all age groups equal to or below 15 years with more than 2 years expected remaining treatment time until reaching NFH. Patients who self-inject should be above 8 years of age in order to be able to fill in the questionnaire. * Children being GH naïve at baseline with one of the following confirmed diagnoses 1. Isolated growth hormone deficiency (iGHD) 2. Small for gestational age (SGA) Exclusion Criteria: * Previous participation in this study. Participation is defined as having given informed consent in this study. * Mental incapacity, unwillingness or language barriers precluding adequate understanding or cooperation. * Patients who have an expected future duration of therapy of less than 2 years are not eligible for the study.