RT Journal Article SR Electronic T1 Excluding medical and haematological conditions as a cause of bruising in suspected non-accidental injury JF Archives of disease in childhood - Education & practice edition JO Arch Dis Child Educ Pract Ed FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 2 OP 8 DO 10.1136/adc.2009.159707 VO 95 IS 1 A1 A M B Minford A1 E M Richards YR 2010 UL http://ep.bmj.com/content/95/1/2.abstract AB A mistaken diagnosis of child abuse can occur in a number of medical conditions, many of which can be readily diagnosed by experienced paediatricians. Bleeding disorders offer a greater challenge, especially when court proceedings may demand their exclusion. Some of these disorders are rare but more prevalent in areas which have a high incidence of consanguinity. We advocate two stages of laboratory investigations but the limitations of some of these tests and their inability to exclude a bleeding disorder with absolute certainty should be recognised. However, if personal and family histories are absent and both first-stage and second-stage investigations are normal, it is highly unlikely that a bleeding disorder will be missed.