Failing to renew might lead to the expiration of your trademark rights.
You may have to undergo the registration process again, which can be time-consuming and more expensive.
Others might take advantage of your lapsed trademark, leading to potential brand confusion.
If your trademark has been on record for over five years, you might need to consider filing for a renewal.
There are several reasons why an Examiner may issue an Opposition to a trademark application, some of which are:
Trademarks Registered
5-Star Reviews
Countries Serviced