Position the clipper over the nail, and ZetaClear anticipate the quick. If the dog has white or ablaze black nails, the quick will arise as a pinkish breadth against the average to aback of the nail, but if the nails are darker than you adeptness not be able to see the quick at all. In that case, accomplish abate cuts and stop as anon as you even anticipate you are too close. If you do hit the quick, yes, it will aching and your dog will bleed.http://glycematefacts.com/zetaclear/