Why is my Boston Terrier's fur turning tan on her legs and back?

Thanks for using Petco Pet Education Center, formerly Petcoach! This is likely a normal pigmentation change though it is hard to know based on a picture as it is blurry. I would continue to monitor her for now. If this is not associated with a skin lesion, itchiness or a skin discharge, I would not be too concerned about this. If she does develop any of the above, I recommend you have her evaluated then. Good luck!

Hi there and thank you for using Petco Pet Education Center, formerly Petcoach to address your question. As long as the skin beneath is healthy looking, this is not going to cause harm to Cookie. Hair coat color change can be due to numerous factors including (but not limited to) genetics, environmental temperature, previous trauma to hair follicles, systemic hormonal disease, etc. If this was sudden that the hair coat changed color, I would recommend having Cookie examined by a veterinarian and have her blood tested just to be on the safe side so that any recommendations for additional diagnostics and treatments 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.

Thanks for using Petco Pet Education Center, formerly Petcoach! It is hard to see in those pictures. That really requires an examination. That could be due to a skin infection or possibly just a normal pigmentation change. I would recommend that if this continues, you have her evaluated by a veterinarian for further assessment. Best of luck!

I would not worry too much about this slight change in skin color. Oftentimes if a dog is itchy and scratches a lot it can cause hyperpigmentation (darkening of the skin) and sometimes skin infection. (Looking at the picture it does not appear that Sandy has a skin infection at this time). Keep an eye on the skin and if she does seem irritated by it then I wouldn't worry.

Thanks for using Petco Pet Education Center, formerly Petcoach! This is possibly due to allergies. A secondary infection is likely and also needs to be addressed. There are many things that can cause allergies though in most cases they can be broken down into 3 big categories: flea, food and environmental allergies. Allergies are usually worked up in a stepwise fashion starting with flea allergies as this is the easiest and cheapest to take care of. If not on a flea preventative, then it would be a good idea to get started on one. If already on one then it would be a good idea to change to something else (there are many new products out in the market). If not improved in 1-3 months then it is time to move on and check for food allergies by switching to a novel diet (new protein and new carbohydrate). If that does not seem to be the issue then you are left out having to check for environmental allergies which require blood and/or skin tests. Allergies can be very frustrating to deal with at first but so rewarding at the end when we are able to treat them effectively!

Thank you for contacting Petco Pet Education Center, formerly Petcoach with your question about Depo. This does not sound normal, and it could be due to a skin infection. Without seeing him person, I can't say for certain what is going on. I'd have him seen by a vet to have this diagnosed and treated. I hope this helps!

Hello, thank you for using Petco Pet Education Center, formerly Petcoach. Pigmentary changes to the hair/coat are not that unusual, especially if there are no underlying lesions. If your pet ever sustained an injury to that area in the past, even a mild infection or burn, the hair follicles can be affected & color can change months to even years later. So, if she is not bothered by the area, you feel no lumps, bumps, roughness, see no redness or dermatitis, then this may just be a normal change in an unusual area. Just mention it to your vet at your next visit. Take care.