itchy skin!

Kristen
Hi all!
 I was wondering if anyone else has been experiencing very itchy skin. My ankles and lower legs have been extremely itchy lately. I've scratched so bad that I've bled on a couple occasions.
 I'm not too sure if this could be a sign for concern. I live in Canada and we're starting to get colder weather and snow. every year I suffer from dry skin during the winter so it's not uncommon for me.  I did read that it could be a symptom of a liver disease which tends to develop during your third trimester. 
If anyone has any advice or remedies, please share :)