Loose teeth and swollen gums, most commonly seen in dental and periodontal diseases, specific need to go to the hospital to take pictures to confirm the examination. 1. Dental disease. Loose teeth and swollen gums may be occlusal trauma, due to denture repair or fillings with occlusal highs not adjusted in time to grind, which can cause the teeth to have a slight loosening, and the apical area has a slight redness and swelling. There may also be periapical periodontitis, the pulp of the tooth is necrotic, the inflammation spreads to the root tip and reaches the submucosa through the periosteum, and the clinical examination shows that the tooth is decayed, and the pulp vitality test is unresponsive. 2. Periodontal disease. When there is periodontitis loss of tooth attachment, alveolar bone resorption may also cause loose teeth, swollen and painful gums, and in severe cases, even fluctuating sensations in the gums. Loose teeth and swollen gums, it is recommended to go to the hospital in a timely manner to avoid the expansion of inflammation and further damage to oral health.