Bleeding and swelling under the tongue is called a sublingual hematoma. It can happen after some kind of tooth surgery or implant. Or it can happen after a mouth or tongue injury.
This problem can be very serious if the swelling increases and blocks your airway. If that happens, you need to be watched and treated in a hospital.
Call 911 anytime you think you may need emergency care. For example, call if:
Call your doctor now or seek immediate medical care if:
Watch closely for changes in your health, and be sure to contact your doctor if:
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