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Post-surgical hematemesis (vomiting blood) occurs for various reasons, not all of them serious or grave. Blood is very irritating to the stomach and upper GI tract, and the presence of even small amounts can cause vomiting. Post-surgical drainage of blood into the GI tract does occur and is frequently controlled with the use of nasogastric tubes to keep the irritation to a minimum. Medications can also be used to mitigate vomiting in post surgical situations. If a patient vomits more than a little bit of blood, then special attention needs to be paid to assess whether it is a sign of hemorrhage which would require more surgery to correct. Even a small bleed, over time, can lead to anemia and have an impact on the patient's ability to clot. Any time a patient vomits blood, it needs to be addressed with his or her doctor.

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15y ago
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12y ago

That most likely means they should go see a doctor because something has gone wrong...

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13y ago

bleeding from the nose and throat, peptic ulcers, stomach cancer, esophageal cancer, a tear in the esophagus caused by violent vomiting, breaking of blood vessels in the esophagus.

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12y ago

There could be several reasons, all bad. The worst would be a stomach ulcer. It really could be a life or death matter if you don't see a doctor soon.

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Q: Why do some people vomit blood after surgery?
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While it is not considered "normal" to vomit following oral surgery, it is a complication that is anticipated. Some people will react this way because of either the anesthetics or from swallowing blood during the surgery. If the surgeon planned to use sedation as part of the procedure, you were told to not eat or drink anything for several hours prior to the surgery. This was to prevent you from aspirating stomach contents into your lungs if you vomited during the procedure. Once the anesthetics have all been metabolized by the liver within a day or so, you should be feeling fine. If you continue to vomit or bleed, notify your surgeon and keep him/her apprised of your situation. Follow their instructions.


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