Bridging vein (BV) ruptures were directly proven as the source of the minimal SDB by a postmortem X-ray. In the controversial discussion concerning the causes of infantile SDB, proof of the occurrence of several BV ruptures is viewed as an important sign of a trauma of significant degree. Since infantile SDB can undoubtedly result from accidental as well as intentional injuries, the SDB in itself does not permit far-reaching conclusions about the cause of the injury. Still, the presence of several BV ruptures combined with an SDB of insignificant volume in an infant dead or in a deep coma on clinical presentation is not compatible with the supposition of a minor fall as the cause. Those who conducted the research for this article have not observed such findings as the result of a minor accidental event for more than 15 years. The specific findings of BV ruptures in non-accidental compared to accidental cases have not been sufficiently investigated, however, which is in part due to the scarceness of such cases. Current data suggest that the proof of BV ruptures, especially if numerous vessels are torn, is important for the difficult determination of the cause of the injuries. 7 figures and 62 references