a: hello, the modification of a registered trademark is allowed, but it must be carried out according to law. A trademark changed by itself is no longer a registered trademark, and it cannot be used as a registered trademark and is not protected by the trademark law. According to the regulations, a successfully registered trademark shall be used in strict accordance with the trademark pattern approved by the Trademark Office and shall not be changed at will. Because when the Trademark Office approves the applicant's trademark application, it examines the trademark elements in the trademark pattern, and only allows the registration of trademarks that meet the relevant provisions of the Trademark Law. If the registrant changes any elements of a registered trademark, it may make the trademark inconsistent with the relevant provisions of the Trademark Law or the same as or similar to the trademark registered online by others. Therefore, after the successful registration of a trademark, it should be changed according to the normal procedures of the trademark law, and it cannot be changed at will.