Gingival apical cysts are usually caused by necrosis of the pulp tissue of the tooth and bacteria reaching the periapical tissue. They usually do not go away on their own and require systematic treatment such as surgical removal before they may disappear. There are more treatment options for apical cysts of the gums, and the treatment varies from case to case. If an apical gum cyst is present, it is recommended to visit a hospital dentistry department for clinical examination and dental film imaging to determine the size and extent of the cyst and then choose a treatment option. If the gingival apical cyst is within 0.5mm, surgery is usually not required and only root canal treatment is needed. If the cyst is larger than 0.5 mm, surgical removal is required. If the gingival apical cyst is considered to be adherent to the periosteum, partial removal of the periosteum is also usually required to prevent recurrence of the gingival apical cyst. For patients who undergo surgical removal, they need to keep their mouth clean and hygienic after surgery and try to eat a light, liquid and semi-liquid diet to avoid adverse stimulation of the gingival wound, which may result in slow healing of the incision.