I have bumps running along my one vein in my arm. What could they be?

Not Medical Advice: Bumps in your arm's vein can be a Superficial thrombophlebitis, an inflammation of a vein just under the skin w/c is usually not serious.

Tags: veinarminflammationskin 
Monday, February 06 2012
Source: http://www.patient.co.uk/health/Phlebitis.htm