The time needed for gingival cysts to form varies from person to person, and can be about 1~3 months. Infantile gingival cysts can be seen in newborns or infants 1~2 months after birth, and adult gingival cysts are slow-growing, as follows. 1. Gingival cysts are odontogenic cysts that occur in the alveolar mucosa and can occur in both infants and adults. Infantile gingival cysts occur in newborns or infants 1~2 months after birth. Clinical manifestations are multiple white or yellowish nodules in the alveolar mucosa, like the size of corn, the number varies, its growth is slow, and it can be detached by itself. 2. Adult gingival cysts are slow-growing, painless, rounded and enlarged, mostly in the cusp and premolar region, with the same color as normal gums or light blue, and when the abscess is large, it can compress the bone cortex, leading to the resorption of its surface. If the above symptoms occur, it is recommended to go to the hospital in time to receive professional treatment as soon as possible.