Confidence votes 18.5K. BMC is the rate/rank designation for a Chief Boatswain's Mate (read Boatswain's Mate, Chief). SW  is the sailor's Warfare Qualification Designator, in this case, Surface Warfare.
Foamy urine shouldnât really be a problem if itâs a result of too much protein. Now if you continually experience foamy urine, you may want to see a doctor as foamy urine can also be a symptom of kidney problems or a gallbladder problem. When in doubt, see the doc.
Why Does Urine Foam. Urine coming from a perfectly healthy individual should be clear and flowing like water. But there are times when it takes on a different color and creates foam when it hits the toilet or the urinal. Should you be concerned when your urine foams?