Dogs Have Begun Having Serious Fights?

I have a 10 year old male Staffy and a 2 year old female Staffy who had puppies by the male 7 months ago. These two dogs loved each other until she gave birth. We kept one pup. The two adults now hate each other, with especially the male showing a lot of aggression towards the female.


They have had a number of seriously bad fights, with the female breaking the nose of the male twice and once almost killing the male. The male is stronger by far and is the attacker (female is very scared of him), but does not last long in a fight due to his age. I have neutered both four months ago, but it did not help. I have separated them, one in the back of the house and the other at the front, but the moment you put them together they immediately fight with blood all over the place. I literally have to separate them with a long iron pole as they will simply not stop.

What is going on here? We are not aggressive people, they are very good to the kids and used to love each other a lot, but since giving birth it is war in this house. If I take them for a walk they are OK with each other, but the moment they are back home they fight. Any one with some ideas?


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October 18, 20170 found this helpful
Best Answer

Dogs fighting.

  • The female hormones from her pregnancy can elicit fights.
  • Testosterone in males can cause males to be aggressive.
  • Usually one dog tries to rule things one dog usually is the boss of the other dog's.
  • They may fight over food,toys,bones,attention from their owners,and places they sleep.
  • If the lower ranking dog does not back off the higher ranking dog this could cause a fight. Example if the lower ranking dog refused to stay away from a bone or owner etc.
  • You can go to the ASPCA'S breaking up a fight for more advice here is the link
  • A younger dog who has reached social maturity may not give into the other dog any longer causing fights.
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  • It is highly recommended you call in a professional dog trainer.
  • Read the page of the link I gave you to understand more about why your dog's are fighting.
  • I have had dog's that fight and it can be dangerous to intervene.
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October 18, 20170 found this helpful
Best Answer

It sounds as though the female went into an protective state because of the puppies, a lot of the time males will kill offspring. She was more than likely just keeping them safe in the beginning.

Now it sounds more like they are being possessive over territory. They both feel like they have exclusive rights over where the other one may be. You mentioned you kept one pup, that you separated the adults on different ends of the house. Where does the pup stay?

I'm wondering if in separating them you may have unintentionally isolated the male and now he has to fight to remain in other areas of the house. If they once were a happy pack and they have no problems outside of the home while on walks it really sounds territorial to me.

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October 19, 20170 found this helpful

Thanks for the response. The older male i keep in the front yard as it is bigger and much nicer with a swimming pool. I keep the female at the back, the place of giving birth. The puppy I rotate between the two as the pup loves both and both loves him. i understand that one can aggravate the matter when separating the two adults, but since the first fight it was just so bloody, broken noses and no indication that it will stop that I had to split them.


I tried keeping them together one evening again, but after them fighting and the male refusing to allow her into the dog home, I separated them. I still try to bring them together but can only do so with chains. Thanks so much.

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October 18, 20170 found this helpful

This is a danger situation for everyone. If the dogs cannot be traIned, one will have to find a new home.

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