I have a three year old GSD Service Dog. He constantly gets reoccurring cysts. I have seen them described as lymphomas or sebaceous cysts. These are small 2-3mm just under the skin cysts. They sometimes have a flaky patch on top of them that is easily removed. If you squeeze the cyst it is uncomfortable for the dog. Some of them form a head and release puss. Mostly they recede back into the body and just go away. One that I messed with ended up becoming inflamed and caused a sore that healed. The vet told me that surgery will not be necessary for them unless they present an irritation problem or become very large.
My vet told me that GSDs are predisposed to them. It is not uncommon. Most of the cysts will not be a problem. I should not worry unless they become inflamed or become larger, then he will deal with them.
I have done multiple searches on this problem, but I have not found a thread that has a cohesive amount of information. We should have one good thread on this common ailment on this site IMO.
I have read that Salmon oil can cause this problem and that it may be diet related. I had changed my dogs diet from Taste of the Wild to Blue Buffalo Wilderness Salmon. He was eating 40lbs of dry and two cases of cans a month. He is a big boy. I have since changed his diet back to TOW non salmon foods. The number, size, and severity of the cysts have decreased.
My reading on the net has also shown that some using a product called Luster Coat helps. I have been trying this also. It is a mix of oils (not salmon), but the effective ingredient in this product is probably the Garlic Oil.
The current two cysts have healed, but now I have two more small ones this month. I am still playing with diet and additives to see if I can eliminate the problem. I have gone through at least 10 of these cysts so far.
Sebaceous cysts are nothing more than sebaceous glands which are blocked and acting badly. If / when they do burst (they will, if they get large enough, and they usually continue to grow). I do not know if what my GSD has is correctly diagnosed.
There are also lymphomas. lymphomas are usually soft, near the surface, and have a very rounded (not lumpy) nature. This is a better description of what my dog has.
If you have this problem with your GSD, please chime in and we can help each other. If you have gone through this problem and have some advice, I would love to hear it. I strongly believe that this problem is probably diet related.
So far I have been able to reduce the problem by changing foods and using the Luster Coat. These cysts are almost like zits that don't come to a head. My vet said that I will most likely be dealing with the issue for the rest of the dogs life, but he is willing to supply me with any medications or supplements I find may help the dog. Since my dog is a Service dog, he receives a very high quality of care. He is very important to me, for obvious reasons, and solving this problem is also very important.
I will continue to check in and update this thread. I hope others that have this same problem with their GSD will have a place to come for help on this problem.
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Regards,
Ken