[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [ENT](https://durgical.com/en/ent/) › [ENT emergencies](https://durgical.com/en/ent/areas/emergencies/) › Bleeding after tonsillectomy # Bleeding after tonsillectomy - Emergency Any bleeding after a tonsillectomy, even a small amount that stops, is an emergency: the patient goes to hospital and ENT is called. Updated Nov 5, 2026 ## Key points - Every post-tonsillectomy bleed needs hospital assessment and ENT, even if it has stopped: a sentinel bleed can precede a large one. - Primary bleed: within 24 hours; secondary bleed: after 24 hours, typically days 5–10. - Children swallow blood: watch for repeated swallowing, vomiting of blood, pallor and a rising heart rate; low blood pressure is a late sign. - Persistent bleeding is controlled in theatre under general anaesthesia; the airway is risky (blood, full stomach). - Ask about bleeding disorders (for example von Willebrand disease) before surgery and when a bleed occurs. ## What it is Bleeding is the main serious complication of tonsillectomy. Primary bleeding happens within 24 hours and is usually related to the operation itself; secondary bleeding happens later, most often around days 5 to 10 when the scab over the tonsil bed separates, and can occur up to about two weeks after surgery. A small «sentinel» bleed can come before a major one. Children hide blood loss: they swallow blood and keep a normal blood pressure until late. ## How to recognise it - Fresh red blood from the mouth or nose, or clots in the throat. - Vomiting of dark blood or black stools from swallowed blood. - Tachycardia, pallor, restlessness and cold hands in a child. - A clot or active bleeding point in the tonsil fossa on examination with a good light. ## Step-by-step management - Advise patients and families before discharge: any bleeding means going to the nearest emergency department at once. - On arrival: sit the patient up and leaning forward, let them spit blood out, suction, and give oxygen. - Insert intravenous access, send full blood count, blood group and crossmatch and coagulation tests, and start fluids. - Call ENT and anaesthesia early; keep the patient nil by mouth. - Small bleeds or clots may settle with observation and local measures; tranexamic acid is used in some protocols. - Ongoing or heavy bleeding goes to theatre for haemostasis under general anaesthesia; transfuse as needed. - After control, admit for observation, and check for a bleeding disorder if the history suggests one. ## Red flags - Active bleeding that does not stop, or recurrent bleeding. - Tachycardia, pallor, drowsiness or low blood pressure. - Vomiting of large amounts of blood. - Airway compromise from blood or clots. - Known bleeding disorder or anticoagulant use. ## Next step / Initial management - Workup: full blood count, blood group and crossmatch, coagulation tests; review drugs and family history of bleeding. - First-line: resuscitation, observation and local measures; tranexamic acid in some protocols; surgical haemostasis in theatre if bleeding persists. - Refer as an emergency, the same moment, to ENT any bleeding after tonsillectomy, including a small bleed that has stopped. - Refer to haematology (routine or urgent according to severity) when a bleeding disorder is suspected. ## Test yourself Think of the answer, then tap the question to see it. ## Seven days after tonsillectomy a 6-year-old spat some blood at home; it has stopped. What should happen? Go to the emergency department and be seen by ENT. Even a small bleed that stops can precede a major one; the child is observed with blood tests and IV access. ## When does secondary post-tonsillectomy bleeding typically occur and why? After the first 24 hours, most often around days 5–10, when the scab over the tonsil bed separates, sometimes with infection. ## Why can blood loss be underestimated in a child after tonsillectomy? Children swallow blood and compensate well: blood pressure stays normal until late, so watch for tachycardia, pallor, repeated swallowing and vomiting of blood. [Add to my cards (3)](https://durgical.app/estudiar/?add=/en/ent/bleeding-after-tonsillectomy/) ## Connections ## Related 1 - [Tonsils and adenoids in children: obstruction, sleep apnoea and when to operate](https://durgical.com/en/ent/tonsils-and-adenoids-in-children-obstruction-sleep-apnoea-and-when-to-operate/) ## Related conditions 1 - [Tonsillar hypertrophy and recurrent tonsillitis (post-tonsillectomy care)](https://durgical.com/en/conditions/tonsillar-hypertrophy-and-recurrent-tonsillitis/) [← All of ENT](https://durgical.com/en/ent/) Educational content; it does not replace a medical assessment and is not a clinical instruction. For a real case, follow current guidelines and specialist advice. Sources: [Tonsillectomy (StatPearls)](https://www.ncbi.nlm.nih.gov/books/NBK536942/) (StatPearls Publishing, NCBI Bookshelf, 2026). ## **Spotted a mistake?** We are always improving for the community. Tell us what is wrong and our team will review it. Report a mistake Representative model, for educational purposes only. --- Source: https://durgical.com/en/ent/bleeding-after-tonsillectomy/ License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Cite as: DurgiPedia (durgical.com), https://durgical.com/en/ent/bleeding-after-tonsillectomy/