Most of the crooked mouth in submandibular gland surgery can be recovered, but the crooked mouth in submandibular gland surgery can not be recovered by itself, so it can be treated in time. Most of the crookedness caused by submaxillary gland surgery is due to anesthesia, local swelling and damage to the facial nerve during the surgery. After the anesthesia slowly recedes, the nerve of the mouth can be freely controlled and the crookedness of the mouth can be recovered on its own. After the anesthesia slowly subsides, the mouth nerve can be controlled freely and the crookedness of the mouth can be recovered by itself. If your mouth is crooked due to localized swelling from submaxillary gland surgery, you can use hormonal drugs such as dexamethasone to reduce the local edema and promote recovery. If your mouth is crooked due to damage to the facial nerve during submaxillary gland surgery, you can undergo functional training of the muscles of expression or facial nerve repair surgery. The use of medication should be directed by a doctor. It is recommended that patients who are worried about their crooked mouths after submandibular gland surgery should go to a regular hospital in time.