Why is my 13-year-old cat limping with a swollen leg and hip knot?

So sorry that he is having this problem. You could try a joint supplement, like Dasuquin or Cosequin for cats, and see if that helps. If not, he should be examined by a vet to determine the cause. Your vet can take an x-ray to help diagnose and then determine the best way to treat. He may need an anti-inflammatory and pain medications and your vet can prescribe.

If you cat goes outdoors, this is very likely the result of a cat bite. It is amazing how small a cat bite wound can be, but under the skin, infection is building up. Have Coco evaluated tomorrow by your vet because if this is a bite wound, the sooner antibiotics are started, the sooner she will start feeling better. Thanks for using Petco Pet Education Center, formerly Petcoach.

Poor Tommy! I would recommend returning to your vet for a follow-up. The swelling on Tommy's leg does not sound good, especially combined with the other symptoms you have reported. One possible cause of the swelling would be some kind of infection. However, since Tommy has also lost a lot of weight and has been off his food I worry more about a cancerous process such as lymphoma, or perhaps a bone mass. Your vet will be able to do bloodwork and X-rays, and likely will want to take some fine needle samples of the 'knot' to look at under the microscope. They may want to send these samples out to be looked at by a pathologist too. Treatment options can vary depending on the findings of the diagnostic tests. They could range from surgery, to oral medications, to injectable chemotherapy. I hope you are able to get to the bottom of things soon for Tommy and that he starts feeling better.

Poor Grady! Unfortunately, this swelling could be due to a malignant tumor, especially if he's an older cat. The difficulty jumping and walking could be due to arthritis. I would have Grady seen by a vet today or first thing tomorrow. The cause of the swelling needs to be diagnosed so the vet can decide if there is any treatment available for him. Should he have arthritis, the vet can prescribe pain medications for him. Please do not give him any human pain medications, as many are toxic to cats and are fatal if given.

Oh no, poor Belis! It is certainly possible that her leg is broken, but it could also be sprained or infected from an animal bite if she's allowed outside. She has to see a vet for this, so I would bring her into one right away. Given that it's really swollen and she's been walking around with a limp limb for three to four days, medical attention is required now. Please bring her into an ER vet or find a vet on call to see her now.

Poor Spooky! I would be very concerned that he has done something serious to his leg if he has been limping for a couple of days, there's swelling, and jumps on three legs. Cats can be very good at hiding their pain, so he is likely in more pain than he lets on. He could have a broken bone, but he could also have a sprain or a torn ligament. He does have to see a vet for this as soon as possible, so take Spooky in first thing Tuesday. Keep him as quiet as possible, and do NOT give him any human pain medications. Many are toxic to cats and are fatal if given. The vet can prescribe him safe pain medications as needed.

Poor Kosho! She could have accidentally injured her limb at night while you were asleep. She could have severely strained a ligament, torn a ligament, broken a bone, or potentially could have an osteosarcoma. An osteosarcoma is a tumor of the bone in cats, the most common bone tumor cats can get. It would cause sudden and severe lameness. Unfortunately, cancer is always a possibility in an old cat. I would take Kosho into the vet today for an exam. The vet can do a physical exam, routine blood tests, a urinalysis, and x-rays to determine what is causing her limp and how best to treat it. She will also need some pain medication as well. Do not give her any human pain medications. Many are toxic to cats and are fatal if given. Please take her into a vet now.