If you need to add extra fields to the WordPress user details page you can.
Here is a simple function that can be added to functions.php to add a telephone number, Skype username, Twitter username and Facebook name to your user details page.
It also lets you remove any details from there also. In the example I have chosen to remove Yahoo IM, Yabber and AIM options.
Once that is added these extra details should appear in your contact details section when you edit a user.
Now to use that information on the front end of the site you can simply call WordPress’ get_user_meta() function to display the value added.
So something like: