Originally Posted by chesney2007

my dog has recently had a major reaction to a tracer /bayer animal health microchip .she developed a lump after having the chip fitted sometime ago. first it felt like a grain of rice in her neck ,it then started growing into a bit bigger than a pea size lump i started trying to make sure it was'nt growing to fast and make sure it was'nt connected to her bone structure the previous vet at winterswan in winterton near scunthorpe removed this, but at that point the chip was'nt within it . Maria the new vet has said that she thinks the same as i do that when i kept checking it the chip must of moved, this was in july 2008. Then shortly after that a few months after i noticed another mass in the same area .This time i asked maria to investigate the area ,she later informed me after the surgery that she had to remove a mass, at this point it was size of half a golf ball which the chip was connected to.Prin has since spent the past 6 weeks in swanbridge hospital in hull which the winterswan vets is part of. She has had to have anastetics everyother day to have her dressings changed the 20cm hole in her neck has stared healing up now thankfully, i was told on the 6th jan 09 that the hole was now 6cm by the vet philip who has also been treating her, it has taken this long because it was infected were the chip had damaged the tissue around the mass .she will also have to have her muscles rebuilt as she has sufferd muscle wastage as well because she has had to be laid in a vets for the past 6 weeks.we think we are doing the right thing by having our pets chipped but we dont get told what it can do to them if it goes wrong. it is 1 in a 1000 i have found out this happens to and it also causes cancer in some cases. i want anyone who has had problems to contact me on 07955989853. Had it not been for the vet Maria giving the level of care and treatment she gives to prin and my other dogs we may not of found this out. The company that makes these chips should rectify this before its to late. It is unfair that we have to unknowingly put our pets at risk like this ,the chips are a good idea but they are not as safe as we think as prins chip has proved. please consider the risks before you have your pet chipped there are other means of identification for your pet that are totally harmless.

Originally Posted by alaun

My pups has moved around to the front of her shoulder so I'm keeping a close eye on it.

Originally Posted by Ridgielover

Only one of mine is chipped (he has a Pet Passport) and the chip has already moved, it's on his chest now.