This study will assess the efficacy of Octafibrin, a fibrinogen concentrate in in the on-demand treatment of spontaneous or traumatic bleeding episodes in paediatric patients less than 12 years of age.The planned study duration is up to 5 years. The study will be considered completed when a minimum of 6 subjects (i.e., at least 3 subjects aged between 0 and <6 years and 3 subjects aged between 6 and <12 years) have at least one documented bleeding episode and when in total a minimum of 2 surgical procedures have been performed.