When is pain management not used during research?

• A. When pain is not present
• B. When the pain medicine will interfere with the results
• C. When an animal is not in pain
• D. When the researcher forgets

Answer: (B)

Pain relief is often part of humane animal care, but in some studies the analgesics themselves can change the measurements researchers are trying to obtain. If a pain-relieving drug alters physiology, behavior, or how another substance is processed, it can mask or mimic the effect the study aims to observe. In those cases, investigators may justify not using pain management to preserve data accuracy, and such decisions are made only with rigorous scientific justification and oversight. This isn’t about choosing to withhold care casually; it’s about balancing scientific validity with animal welfare, and exploring alternatives or analgesics with minimal impact whenever possible.