Patient: Description of condition (onset, main symptoms, hospital visited, etc.): A relatively large cyst under the tongue was found in the afternoon of August 18 this year when the baby was first born. Ultrasound findings: sublingual gland area: a cystic echogenic area of about 18x13mm in extent, with multiple compartments and a wall thickness of 1.2mm, dense dotted echogenicity within the cyst, and a 6x4mm hyperechoic area attached to the anterior inner wall, not moving. Diagnosis: sublingual gland cyst How should I treat this condition? When is the best time to treat an infant? Thank you! Doctor: It is not necessarily a cyst in the sublingual gland, but the diagnosis should be clarified first. Patient: What else could it be? How should I treat this condition? Doctor: It could also be a hemangioma, etc. It is best to bring your child in for a visit. Patient: The child is too young, born only 10 days ago. When can I see you for a diagnosis in this case? What do I need to bring before I go? Doctor: You can wait, or you can come after 3-5 months, as long as you bring the case.