If you would like to show blocks only on the profile page and not on the user/register or user/login or or user/*/edit, you can use the code for blocks visibility.

<?php
global $user;
if (arg(0) == 'user' && $user->uid == arg(1) && is_numeric(arg(1)) && (arg(2) == NULL) )
{
return TRUE;
}

else {
return FALSE;
}
?>