Q: iPhone 5s touch ID doesn't work

I have an iPhone 5s gold less than a year old and the past day or two my touch ID hasn't worked. I have never had this problem before and it came on very suddenly. I tried taking off my fingerprints and resetting them and when I did it took 5-6 times before it would register my fingerprints to set one, after I got my fingerprints back on when I locked my phone the touch ID still won't work. Has anyone had this problem before or know what I can do to fix it??