Coming from their poodle genetics, labradoodles do grow hair in their ear canal. This can lead to yeast infections if you don't keep the ears free of hair as much as possible. If your doodle is scratching their ears or shaking their head a lot, they might have an infection. If you can smell yeast or a smell from their ears, it is a definite. You can prevent this by using ear plucking supplies and ear wash. If your dog gets an infection, treat it immediately with . Your vet will charge for a visit and antibiotics, which is not necessary unless this fails (which we have never seen happen).
Ear care & prevention
Yeast infection treatment