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Did one 8-mile run harm my 11-week-old puppy's developing joints?

Updated On September 23rd, 2025

Pet's info: Dog | Treeing Walker Coonhound | Male | unneutered | 11 lbs

Will my 11 week old puppy’s joints be OK (from a development perspective) from a one time 8 mile trail run, especially if I don’t do it again until he’s older? Did I damage him from one time occurrence or fine as long as not repetitive? He seems ok and walking like normal.

1 Answer

Most Helpful Answer

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Answered By Lindsey Edwards MVB, BSc, IVCA

Veterinarian

Published on July 28th, 2018

This is impossible to predict as the bones and cartilage are very soft at 11 weeks and repetitive impact could cause pressure and wear but a once off would be unlikely to have any on going effects if it did not create lameness within the first 3-5days. I would recommend he is fed a high quality puppy food up until at least 12-15months to optimise bone and joint development and promote healthy cartilage

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