Closed axillary suction drains are archaic tools to prevent seroma after ALND by simple mechanical drainage at the cost of significant patient discomfort and increased length of hospital stay. The sealing agent TachoSil® (consists of an equine collagen sponge coated with human fibrinogen and human thrombin) allows a more nuanced approach to the management of axillary seroma prevention and may support ongoing and decades-old efforts of the professional breast cancer community to decrease the duration of axillary drainage and finally, to abandon the drain from routine clinical practice.