Blue dye could ease pain after hemorrhoid surgery
NCT ID NCT07164807
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tests whether adding methylene blue to a standard painkiller can reduce pain after hemorrhoid surgery. About 177 adults with severe hemorrhoids will receive one of two doses of methylene blue plus ropivacaine. Researchers will track pain scores, painkiller use, and quality of life for one month after surgery.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- methylene blue combined with ropivacaine
- What this could lead to
- If it works, this could provide a better way to manage pain after hemorrhoid surgery, reducing the need for strong painkillers.
- What could go wrong
- This is a small, early-phase trial with only 177 people. The results may not apply to everyone, and there is a risk of side effects like skin irritation or allergic reactions.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for METHYLENE BLUE are added.
By submitting, you agree to our Terms of use
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Affiliated Hospital of Putian University
Putian, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.