Petco Text Logo
Petco Pet Logo

  • Two Easy Ways to Start Earning Rewards!

Why are my male cats fighting after a haircut, especially at night?

Updated On September 23rd, 2025

Pet's info: Cat | Persian | Male | neutered | 5 lbs

I have three cats 2 male one female. One male is a baby of another couple, I got a hair cut of my both male cats because of mats, they were good friends before but now they are not even sit with each other, making noise and shouting growling at each other specially at night. My veteran is saying it will be fine. They had a hair cut on may 17 till now they are fighting Please HELP ME OUT !!¡!!!!!!!!!!

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on June 11th, 2020

I can help you! I would separate the cats, and slowly reintroduce them to each other. Take the cat who is aggressive, and put him in his own room with his own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let the other cat in the aggressive cat's room while the aggressive cat is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove the second cat from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let the aggressive cat out of his room, and see how he interacts with the other cat. Praise them when they interact appropriately, and separate them with any sign of aggression or upset. I would get a cat tree with lots of shelves to give the cats vertical space to get away from each other. I would keep the cat in his room when you go out until they are comfortable with each other. I hope this helps!

Vote icon

1Pet Parents found this answer helpful

Related Questions

Petco Pet Education Center
Health & Wellbeing
I shaved my cats and now they're fighting. Why?
It's probably because they smell differently after the shave job. I would slowly reintroduce them to each other. Take the cat who is aggressive, and put her in her own room with her own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let the other cat in the aggressive cat's room while the aggressive cat is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove the second cat from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let the aggressive cat out of her room, and see how she interacts with the other cat. Praise them when they interact appropriately, and separate them with any sign of aggression or upset. I would get a cat tree with lots of shelves to give the cat
Updated on September 24th, 2025
Petco Pet Education Center
Health & Wellbeing
I’m having this issue, but my cat won’t stop this agression with the other cat due to the lion cut issue. It’s been 4 days since this situation and I really need help to stop this.
Oh no, that's not good! I would separate the cats, and slowly reintroduce them to each other. Take the cat who is aggressive, and put her in her own room with her own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let the other cat in the aggressive cat's room while the aggressive cat is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove the second cat from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let the aggressive cat out of her room, and see how she interacts with the other cat. Praise them when they interact appropriately, and separate them with any sign of aggression or upset. I would get a cat tree with lots of shelves to give the cats vertical space to
Updated on September 24th, 2025
Petco Pet Education Center
Health & Wellbeing
i have two males cats that won't get along. They've been together for a year and when one was first introduced, he attacked the other male. ever since then, he always shows his belly and tries to play but the other male growls until the other male go
I would separate the cats, and slowly reintroduce them to each other. Take the cat who is aggressive, and put him in his own room with his own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let the other cat in the aggressive cat's room while the aggressive cat is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove the second cat from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let the aggressive cat out of his room, and see how he interacts with the other cat. Praise them when they interact appropriately, and separate them with any sign of aggression or upset. I would get a cat tree with lots of shelves to give the cats vertical space to get away from each other.
Updated on September 24th, 2025
Petco Pet Education Center
Health & Wellbeing
I have two cats, both black, one female and one male. The male is about 7 years old and the female is about 5. They are both fixed. Last night I gave them a bath and awoke early this morning to them hissing at each other. Usually they are very lovey
Great question! Washing Rikku and Lucy will have changed their smell, and they now see each other as strangers. I would separate the cats, and slowly reintroduce them to each other. Take Lucy, and put her in her own room with her own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let Rikku into Lucy's room while she is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove him from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let her out of her room, and see how she interacts with him. Praise them when they interact appropriately, and separate them with any sign of aggression or upset. I would get a cat tree with lots of shelves to give the cats vertical space to ge
Updated on September 24th, 2025
Petco Pet Education Center
Training & Behavior
I just moved apartments two days ago and my two cats hate each other now. They have lived together for over a year and they’ve never had any issues before this move. I moved about 6 months ago as well and they didn’t have this problem. I am keeping t
Oh no, that's not good! I would separate the cats, and slowly reintroduce them to each other. Take the cat who is aggressive, and put her in her own room with her own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let the other cat in the aggressive cat's room while the aggressive cat is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove the second cat from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let the aggressive cat out of her room, and see how she interacts with the other cat. Praise them when they interact appropriately, and separate them with any sign of aggression or upset. I would get a cat tree with lots of shelves to give the cats vertical space to
Updated on September 24th, 2025
Petco Pet Education Center
Health & Wellbeing
My cat has has extreme depression due to a cat added to our family & I'm trying everything to drag her out of it but now she's getting aggressive not only with the smaller cat (scaring her 24/7) she's getting aggressive with me. I'm not sure where to
Oh no, that's not good. I would separate the cats, and slowly reintroduce them to each other. Take Silky, and put her in her own room with her own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let the other cat in the Silky's room while the aggressive cat is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove the second cat from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let Silky out of her room, and see how she interacts with the other cat. Praise them when they interact appropriately, and separate them with any sign of aggression or upset. I would get a cat tree with lots of shelves to give the cats vertical space to get away from each other. I would keep th
Updated on September 24th, 2025
Petco Pet Education Center
Health & Wellbeing
I have two male cats, both neutered, Normally they get along fine with the occasional play fighting which usually ends in them grooming each other. Jusr recently I was on the internet a stopped on a site with cat noises and played them. These cats to
It does sound like cat nosies set them off with each other! I would separate them for tonight if they are hissing like crazy, and see how they are in the morning. Let them sniff each other and if there is no aggression, then they can be left together. Should they still be grumpy with each other, I will give you a method for slowing introducing them to each other slowly. Method for reintroducing them: I would separate the cats, and slowly reintroduce them to each other. Take Jass, and put him in his own room with his own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let Malachi in the Jazz's room while Jazz is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove Malachi from the room, and try again later. Praise them when they interact appropriately. When they are inter
Updated on September 24th, 2025
Petco Pet Education Center
Health & Wellbeing
Very bonded cats for five years have started fighting. One made it outside last night and fights started then. Today the conflicts repeated several times. Cat that escaped is fine now and he's been bathed. Other cat wants to attack him on sight and h
Thank you for contacting Boop by Petco with your question. I suspect because one got outside, it now smells differently and the other cats views it as a stranger causing the aggression. I would separate the cats, and slowly reintroduce them to each other. Take the cat who is aggressive, and put her in her own room with her own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let the other cat in the aggressive cat's room while the aggressive cat is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove the second cat from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let the aggressive cat out of her room, and see how she interacts with the other cat. Praise them when
Updated on September 24th, 2025
Petco Pet Education Center
Training & Behavior
I have two cats Colby and jack who are brother and get along great. They both went outside yesterday and Colby never came home. We found him today and he has a Scratch on his face. Ever since being home Jack has been hissing at him and trying to atta
Because Colby disappeared for a bit, he probably went on an adventure and came back smelling differently. Jack views him as a stranger, and that's why he's acting aggressively. I would separate the cats, and slowly reintroduce them to each other. Take Jack, and put him in his own room with his own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let Colby in Jack's room while Jack is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove Colby from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let Jack out of his room, and see how he interacts with Colby. Praise them when they interact appropriately, and separate them with any sign of aggression or upset. I would get a
Updated on September 24th, 2025
Petco Pet Education Center
Health & Wellbeing
Abdul has been home for almost a year. He has recently started harassing Minnie (12lbs female) to the point he is chasing her through our house and cornering her. Its stressing Minnie out and I don't know *why* hes doing it. He has 3 other cats to pl
Having a health check with the vet is a good idea for Abdul. Sometimes when a cat suddenly becomes aggressive, ti can be a sign that he is ill. I'd take him into the vet in the morning. If he checks out health wise, try this method below to see if it helps. Best of luck. I would separate the cats, and slowly reintroduce them to each other. Take the cat who is aggressive, and put him in his own room with his own food, water, and litter box. Keep the door closed, and for a few days, feed them both treats on other side of door so they associate each other's smell with a good experience. Then let the other cat in the aggressive cat's room while the aggressive cat is in a cat carrier. They can smell each other, but not be in contact. If either becomes upset or show signs of aggression, remove the second cat from the room, and try again later. Praise them when they interact appropriately. When they are interacting well with each other through the carrier, you can let the aggressi
Updated on September 24th, 2025

Related Searches

Cat Supplies Cat Food Cat Training & Behavior Cat Grooming & Bathing Cat Clippers & Shears Cat Health & Wellness Cat Nail Care Flea & Tick Solutions for Cats Cat Furniture & Scratchers Calming Aids for Cats Remedy+Recovery Cat Grooming & Bathing CAT by Dr Lisa Cat Grooming & Bathing HEALERS Cat Grooming & Bathing Vetality Cat Training & Behavior Curicyn Cat Grooming & Bathing Vet's Best Cat Grooming & Bathing PurrScriptions Cat Grooming & Bathing Vetnique Labs Cat Grooming & Bathing Pawtitas Cat Grooming & Bathing Sticky Paws Cat Training & Behavior
image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Book Now

Sponsored