red stems

Hey, I'm not sure if this is a big issue or anything.. but does anyone know what red stems are a sign of?? My main stems are nice and green but some of the branches have a noticeable red color to them. I'd post pictures if I could but I'm not home.

What strain are you growing?? some strains have reddish/purple tinges...
Also it could be a deficiency, but i'd wait for any other signs of an N/P/K def...
Lie i said, red petioles are genetic on alot of strains..Read up on Deficiencies, and wait n see if you have any other symptoms develop