A bodily fluid collection device includes: (a) at least one wall that at least partially defines an interior space configured for contacting a bodily fluid, the at least one wall having at least one interior wall surface (b) a drain port coupled with at least a first portion of the at least one wall, the drain port configured to provide fluid communication between the interior space and an exterior of the device and (c) at least one surface feature defined by at least a portion of the at least one interior wall surface, the at least one surface feature at least partially defining one or a plurality of flow pathways in the interior space. The one or the plurality of flow pathways is configured to mitigate or prevent collapse of the device, occlusion in the device, and/or closing off of the drain port when suction is applied.
