My cat's neck spot is darkening. Is it a sun spot or health concern?

Thanks for using Petco Pet Education Center, formerly Petcoach! This could be a benign or malignant growth. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and have a good night!

Some discoloration/skin changes can be normal with age, however if the area is rapidly changing color, the spot loses hair, is painful, or you notice signs of cuts or infection (open wounds, oozing debris, pain to the touch, etc) it is best to have your vet take a look to rule out issues such as an infection or injury to the area. I would keep an eye on the spot to monitor for any changes, and keep Sweetie from licking or chewing at it with the use of an Elizabethan (cone) collar as needed, as well as keep the area clean and dry. If the spot doesn't improve or worsens, a vet visit is best.

It is difficult to say for sure from the picture as there is some discoloration artifacts on the photo. If the spot is not raised and is flat, it is likely a spot of increased color (hyperpigmentation). It could be the start of a melanoma so it would be wise to keep a close eye on this. If you would like a definitive answer, I would have your veterinarian take a look at Bella so that the most appropriate recommendations can be made. I hope this helps! Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

Hi, I can see the dark pigmented mass on the photo and I would be more cautious then to say in certainty what any mass is by simply looking at it. If it hasn't been done yet I suggest to go to your vet and consider trying to take a sample. This usually means collecting samples of the material inside the mass with a needle (fine needle aspiration=FNA). Taking a sample and analyzing at it under the microscope or sending it to a pathologist for identification is crucial in most cases for a definitive diagnosis. If FNA is not effective (or if your vet thinks it's not the best option) the next recommendation is usually a biopsy.

Thanks for using Petco Pet Education Center, formerly Petcoach! It is hard to know for sure based on these pictures though this is possibly a normal pigmentation change. If it is not associated with itchiness or discomfort, there is no need to be concerned about this. If you ever notice any discomfort or itchiness, have her evaluated by your veterinarian for further assessment and treatment. Good luck and have a great day!

Hello. Cats can develop pigmentary spots similar to freckles in people. The spot do show up more often on the lips & the pink skin around the eyes. If you could post a very clear picture, I might be able to be a little more accurate, otherwise, just point the spot out to your vet at Tiffany's next visit. Thanks for using Petco Pet Education Center, formerly Petcoach.

I would get this checked out by a vet. I worry about these dark-colored masses being melanoma, which can be a serious cancer if not controlled soon enough. It's also possible that this is a benign skin tumor or cyst, but there's no way to tell for sure from looking at it. A sample will need to be analyzed under a microscope in order to tell what type of mass it is. I hope that helps and all is well with the cat.