Summary.  Standardized outcome measures allow us to be more objective when measuring the impact of therapy on persons with haemophilia. Many excellent measures have been developed for haemophilia – especially in the health domains of structure and function, and activities; excellent health status/health‐related quality‐of‐life tools have also been developed for haemophilia. Studies from other disciplines suggest that the use of standardized outcome measures in daily practice leads to improvement in quality of care. Because of their potential complexity, measures must be chosen that are practical for use in clinic. Future research should be focussed on the best ways to implement the use of standardized outcome measures in haemophilia practice.