Why are my fingers sore?

It is completely normal for your fingers to get sore when beginning to play the guitar. When your fingers start to hurt, take a break, then try again after a 5 to 10 minute rest. Do not continue to play if you have blisters on your fingers; let them heal before you play again.

Eventually your fingers will form thick skin called calluses over the fingertips, these will protect your fingers from continuing to get sore.