Is he eating a lot of grass? I know my dog loves to eat grass, and I have to stop him from eating too much or he starts throwing it up. Maybe he too pees green when he eats too much grass, but I don't know, I haven't been paying attention.
It means your dogs is pregnet and you will need to take it to the vet because the pups are sick inside of the utrus and making your dog sick It means your dogs is pregnet and you will need to take it to the vet because the pups are sick inside of the utrus and making your dog sick I'm pretty sure it is normal. If it is a little green your dog should be okay. Sometimes discharge is a greenish color for some woman. If is a really sick dark green, i would recomend seeing a vet soon.
The following link may be of interest to you:
http://www.petplace.com/dogs/vaginal-discharge-in-dogs/page1.aspx
This is not normal. Take your dog to the vet.
that sounds like an infection. id take your dog to the vet
Green discharge is a sign of infection. Go see your veterinarian.
if they are not female and are not fixed
If they aren't neutered, yes.
No, but they do remain at home and not wander.
No. However male dogs can still show interest in them even if they are spayed.
they shouldnt, thats a problem, talk to your vet.. thats not normal..
Pro-oestrus, where the vulva swells and there is clear, then bloody, discharge. The female is often nervous.
They still may have the urge after being fixed if the female is in heat, or goes into heat. Just because the male is fixed, doesn't mean he has lost the urge, or can't do it any more. All that has been removed is his nuts and sperm. Therefore, the male and female can still mate and get locked up, but can not get pregnant unless it is recently after the male has been fixed and he still has a little bit of sperm in his system.
Well the female ones do when they menstruate unless they have been fixed. So how many is impossible to say.
The female should be spayed (fixed) at about 6 months. Some believe that she should have a litter before being spayed, but the only thing that does is add more unwanted dogs to the dog pound.
Some female dogs get Pyometra, a disease of the uterus. It will make their organs fill with pus and they will rupture. Get her fixed. Also, your male dog is fixed, so it should be fine, if you notice a lot of humping, separate them if necessary.
All Female dogs can have puppies, but only if that havn't been fixed. I don;t completely understand your question but by 'may' I think you might have meant 'many'.