What's this soft lump on my cat's forehead after a sore fell off?

It looks like she make have gotten a small wound on her head, maybe from getting swatted by another cat. Cat claws and bites tend to make wounds with small holes that seal over and trap bacteria inside. This will form a small abscess which will then rupture, which is what this appears to be to me. Keep an eye on it and keep it clean with a washcloth, warm water and a mild soap. Clean it two or three times a day and make sure to get all the soap off or it will irritate her skin. As long as it continues to improve and she is acting fine, eating and drinking, she should be fine. If it closes up again, swells, gets really red, hot, or if she starts acting sick or loses her appetite, get her in to see you vet as soon as possible as she may then need antibiotics to clear up the infection and heal.

It’s hard to be sure what this is from the photo. The most common lump that come up quickly in cats is an abscess, or pocket of infection. They develop from a puncture wound usually. If it’s an infection it will be sore, hot to the touch, and feel soft. Due to Sampson’s age though this could be a mass or tumor. Those lumps are firm, non painful and do not feel warm. I recommend a veterinary exam to determine what the lump is. They can take a needle and examine some cells from inside the lump and get a diagnosis. If it’s an infection this should heal with antibiotics. If it’s a growth, depending on the diagnosis they may just watch it for enlargement or recommend surgical removal. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Samson.

This could be a cat bite abscess. Your kitty may have been in a fight. If she lets you you can put a warm compress on it with warm epsom salt solution which may make the abscess burst. If it does not burst by tomorrow, take her to your veterinarian who can lance it. In case it is not an abscess your vet can then examine the lump or injury and treat it accordingly.

It's likely that this lump is an abscess from a fight he had outside with another cat, you will need to take him to the vet in order to get it checked and treated, if it is an abscess it will need to be lanced and clean under sedation, he will also have an antibiotic injection to treat the infection.

It is difficult to know without doing an exam and seeing the bump but it could be an abscess or cyst. Have him examined by a vet to determine the cause and treat. Your vet can do a fine needle aspirate to help diagnose and then recommend the best treatment plan.

I would recommend that Scooter have this bump checked out. An abscess is an infection, and I would not expect it to be there 6 months large. It is more likely to be a cyst or even a tumor. A vet can evaluate the bump, and may stick a needle inside to collect a sample of cells to look at under a microscope. Once they have a better idea of what it is, they can tell you if it needs to be surgically removed or not.

Unfortunately, it's impossible to tell what is going on with a skin problem by just looking at the skin since most skin problems look very similar. My best recommendation would be to have your veterinarian perform some simple skin tests to get a sample of the area to examine under the microscope. They will be able to evaluate for bacteria, yeast, mites, fungus and abnormal cells. Hopefully that will determine what is causing the problem and how to treat it. Good luck! I hope that was helpful. Thanks for using Petco Pet Education Center, formerly Petcoach.