Can dogs who have been fixed masturbate?

I have a 3 1/2 year old Pomeranian-Lhasa Apso who we've had fixed before he was a year old. However over the past few days, after he got a hair cut, he has been licking his crotch. At first we all thought he was just sore and itchy, but I caught him with a *****. I scolded him and he promptly stopped. But I... show more I have a 3 1/2 year old Pomeranian-Lhasa Apso who we've had fixed before he was a year old. However over the past few days, after he got a hair cut, he has been licking his crotch. At first we all thought he was just sore and itchy, but I caught him with a *****. I scolded him and he promptly stopped. But I want to know if he was masturbating, and ways that we can prevent it? Because it is disgusting.
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