Blue dye could be key to Pain-Free hemorrhoid recovery
NCT ID NCT07164807
First seen Nov 01, 2025 · Last updated May 14, 2026 · Updated 31 times
Summary
This study tests whether adding different amounts of methylene blue (a dye with pain-relieving properties) to a standard local anesthetic (ropivacaine) can better control pain after hemorrhoid surgery. About 177 adults with severe hemorrhoids will receive the injection during surgery and report their pain levels over the next month. The goal is to find the best dose for reducing pain and improving recovery without increasing side effects.
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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Affiliated Hospital of Putian University
Putian, China
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