My young male cat plays too rough with my older female. What to do?

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 get away from each other. I would keep the cat in her room when you go out until they are comfortable with each other. I hope this helps!

Most cats will settle down within a few weeks. Kittens do play rough and it can be hard to tell. If they willingly come together, play willingly and you don't see any bullying behavior (avoidance, hiding, arching the back and puffing up the tail) they are likely playing rough. If they play too rough they could injure each other by accident so continue to separate them when not supervised but most kittens will not require this. Giving each kitten one on one play time with you to burn energy, feeding out of a food puzzle and providing cats trees/other environmental stimulation can also help. Continue the current therapy as well. I hope this helps.

If the female is being treated for lymphoma, she will be smelling differently when she returns home from treatment, and Mochi will see her as a stranger, leading to the aggression. 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!

Getting a new kitten into the house is stressful for the existing cat, and that is likely why Luna is acting this way. I would slowly introduce them to each other. Take Odie, 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 Luna in Odie's room while he 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 Luna 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 Odie out of his room, and see how he interacts with Luna. 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 Odie in his room when you go out until they are comfortable with each other. I hope this helps!

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 get away from each other. I would keep the cat in her room when you go out until they are comfortable with each other.

This is so hard for you! I would separate the cats, and slowly reintroduce them to each other. Take the cat who is aggressive, and put Zeke 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 Zeke's room while he 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 Zeke 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 Zeke in his room when you go out until they are comfortable with each other. I hope this helps.

Poor Lumi! It sounds like he is a little stressed out. Visit the following link for more information on how to introduce a dog to your cat https://indoorpet.osu.edu/cats/felinelifestressors/new-pets Visit http://www.humanesociety.org/animals/cats/tips/kitten_play.html for information on how to get Lumi to play gently. Also make sure Lumi has a home environment that promotes enrichment and reduces stress. Cats need at least one litterbox per cat plus one extra to help reduce stress associated with the litterbox. They should be placed in separate rooms, away from the food and water bowls, must be scooped at least daily (preferably multiple times a day)and washed out at least weekly with a mild soap, followed by thorough rinsing. Cats need a lot of space to explore, but keeping them indoors is much safer than letting them outside, due to the risk of injury from cars, wildlife, other animals, etc. The key is providing space (particularly vertical space for climbing, such as cat trees, ledges, and the like) inside the home. Visit http://www.veterinarypartner.com/Content.plx?P=T&C=33&S=2 and https://indoorpet.osu.edu// for tips on stress reduction. Also look into Feliway, a synthetic pheromone that is available in a diffuser and spray form that promotes calm feelings in cats http://www.feliway.com. I recommend speaking to your veterinarian about having Lumi neutered as soon as possible, as this can help reduce behaviours such as humping, urine marking, aggression, territorial behaviour and roaming away from home and may help him to get along with your new pup.