What makes a horse wheeze when he runs?
it might be having an asthma attack. you might wanna get that checked out.
Why do horses wheeze?
Horses may wheeze for several reasons. The first is a airway obstruction like mucus blocking the airs pathway. Another is due to paralysis of certain parts of the throat which causes the horse to make a sound called roaring. Horse can also wheeze if they are sick, in pain, or have learned that making that particular sound will get them out of working.