Redness and swelling of the gums next to the teeth after dental implantation is considered to be caused by the surrounding soft tissue irritation, or it may be the emergence of diseases such as gingivitis. 1. Surrounding soft tissue irritation, dental implant is a kind of innovative operation, dental implant process may cause irritation to the tissue around the tooth, resulting in tissue trauma, so the symptoms of redness and swelling of the gums may appear. 2. Gingivitis, if the area around the implant cannot be cleaned sufficiently and the gums are stimulated by pathogens, gingivitis may be induced and therefore symptoms of redness and swelling of the gums may occur, and there is usually a possibility of pain, increased sensitivity and other reactions. If the redness and swelling of the gums next to the dental implant is more serious, it is recommended to consult a doctor for examination in time to determine whether there is any disease produced before treating the symptoms.