My mother has a chihuahua and her dogs testicles swelled up he also had a hard time peeing and he had crystal in his bladder and had to have them removed.you should take him to the vet.
My Chihuahua Developed Extremely Red,(they Look Raw)slightly Swollen Testicles Overnight! They Are Painful,..as He Is Wimpering Occasionally & Outright Screaming When He Bumps Or Grazes Them?
Has he been neutered properly? Is he excessively licking them? Scooting? If he hasn't been neutered,I strongly suggest doing so,as leaving a dog intact can lead to many health issues later in life.Call your local Humane Society,they usually have certficates at low cost that include a rabies vaccination,and most vets accept these,with no further cost(after the purchase of the certificate).
If he is excessively licking his testicles,they could be irritated to begin with,and he's making it worse.Same with any scooting,if that's relevant to your situation.
In any case,of course,I suggest a trip to the vet.
If he is excessively licking his testicles,they could be irritated to begin with,and he's making it worse.Same with any scooting,if that's relevant to your situation.
In any case,of course,I suggest a trip to the vet.
