How do you know when a male dog is in heat?

I have a 6 month chihuahua and I was just going to call the vet to make an appt to have him fixed, but.... today his little wienne came out. Does this mean he is in heat??? If so how safe is it for them to be fixed while they are in heat. He is only 2…

    How do you know when a male dog is in heat?

    I have a 6 month chihuahua and I was just going to call the vet to make an appt to have him fixed, but.... today his little wienne came out. Does this mean he is in heat??? If so how safe is it for them to be fixed while they are in heat. He is only 2…...
    General Dog Discussions : How do you know when a male dog is in heat?...