A low-profile wearable surgical drain system for collection of fluid from at least one drain portion on or in a body of a user, the drain system comprising: a collection reservoir having a reservoir wall that defines an interior chamber and a collection port defined in a portion of the reservoir wall and a drain port defined in a portion of the reservoir wall, wherein the drain port is configured to allow fluid collected in the interior chamber of the collection reservoir to be released; a pump configured to charge the interior chamber of the collection reservoir with a vacuum pressure such that, when charged, the vacuum pressure urges fluid from the user through the inner lumen of the connection tube, through the collection port and into the interior chamber of the collection reservoir; and an air intake aperture defined in a portion of the reservoir wall of the collection reservoir, wherein the air intake aperture is configured to place the interior chamber of the collection reservoir in fluid communication with the outside atmosphere; wherein the collection reservoir comprises a drain mechanism configured to simultaneously allow air to enter and fluid to exit the interior chamber of the collection reservoir, characterized by a collection tube having a distal end coupled to the at least one drain portion of the user and a proximal end coupled to the collection port such that the least one drain portion, an inner lumen of the collection tube, the collection port and the interior chamber of the collection reservoir are in sealed fluid communication; wherein the drain mechanism comprises a knob and a plunger wherein the plunger has a distal end on which the knob is positioned, a proximal end of the plunger is configured to seal the drain port and a central portion extending between the proximal end and the distal end of the plunger; and a belt configured to be worn by the user, wherein the low-profile wearable surgical drain system including the collection reservoir, the collection tube, the pump mechanism and drain mechanism are attachable to the belt so that the low-profile wearable surgical drain system is configured to be wearable by the user without clothing while dressing or showering and worn under clothing without being detectable. a collection reservoir having a reservoir wall that defines an interior chamber and a collection port defined in a portion of the reservoir wall and a drain port defined in a portion of the reservoir wall, wherein the drain port is configured to allow fluid collected in the interior chamber of the collection reservoir to be released; a pump configured to charge the interior chamber of the collection reservoir with a vacuum pressure such that, when charged, the vacuum pressure urges fluid from the user through the inner lumen of the connection tube, through the collection port and into the interior chamber of the collection reservoir; and an air intake aperture defined in a portion of the reservoir wall of the collection reservoir, wherein the air intake aperture is configured to place the interior chamber of the collection reservoir in fluid communication with the outside atmosphere; wherein the collection reservoir comprises a drain mechanism configured to simultaneously allow air to enter and fluid to exit the interior chamber of the collection reservoir, a collection tube having a distal end coupled to the at least one drain portion of the user and a proximal end coupled to the collection port such that the least one drain portion, an inner lumen of the collection tube, the collection port and the interior chamber of the collection reservoir are in sealed fluid communication; wherein the drain mechanism comprises a knob and a plunger wherein the plunger has a distal end on which the knob is positioned, a proximal end of the plunger is configured to seal the drain port and a central portion extending between the proximal end and the distal end of the plunger; and a belt configured to be worn by the user, wherein the low-profile wearable surgical drain system including the collection reservoir, the collection tube, the pump mechanism and drain mechanism are attachable to the belt so that the low-profile wearable surgical drain system is configured to be wearable by the user without clothing while dressing or showering and worn under clothing without being detectable.