Most patients with gum cancer have no obvious symptoms at the initial stage, and a few patients may have clinical symptoms such as gum pain, loose teeth and gum ulcers. 1. Gum pain: malignant tissues may infiltrate into the alveolar process and jawbone, destroying the bone and leading to gum pain. 2. Loose teeth: When the bone is destroyed more seriously, it may cause loose or floating teeth. 3. Gum ulcers: During the disease, ulcers may form in the gums or nearby areas. The initial symptoms of gum cancer are not obvious, if you feel uncomfortable, it is recommended to go to the dentistry department of the hospital as soon as possible to get a clear diagnosis and actively receive treatment.