![My dog has a red bump on his back leg and a black hole in the middle. And it got bigger. Within a week. About the size of a dime now. My dog has a red bump on his back leg and a black hole in the middle. And it got bigger. Within a week. About the size of a dime now.](https://cf-s3.petcoach.co/question_photo_normal_thumb/uploads/questions/316452/images/3294b303662ab1eca4b4fdb3752f5f3d4f4e5341.jpeg)
My dog has a red bump on his back leg and a black hole in the middle. And it got bigger. Within a week. About the size of a dime now.
![Insect Bite Human Skin Red Spot Blister Effect Stock Photo, Picture And Royalty Free Image. Image 140237873. Insect Bite Human Skin Red Spot Blister Effect Stock Photo, Picture And Royalty Free Image. Image 140237873.](https://us.123rf.com/450wm/topfotography/topfotography2002/topfotography200200021/140237873-insect-bite-human-skin-red-spot-blister-effect.jpg)
Insect Bite Human Skin Red Spot Blister Effect Stock Photo, Picture And Royalty Free Image. Image 140237873.
![Weird red bump, very itchy with little black spot in the middle surrounded by other little black spots. Whole thing the size of dime or maybe penny..any ideas what this is? : Weird red bump, very itchy with little black spot in the middle surrounded by other little black spots. Whole thing the size of dime or maybe penny..any ideas what this is? :](https://preview.redd.it/ic7n9ziwtua71.jpg?width=640&crop=smart&auto=webp&s=0177784f353f2c2e81a7d1e612737598385e4269)
Weird red bump, very itchy with little black spot in the middle surrounded by other little black spots. Whole thing the size of dime or maybe penny..any ideas what this is? :
![Five types of spot you should never squeeze or pick - and the two you can have a go at - Mirror Online Five types of spot you should never squeeze or pick - and the two you can have a go at - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article12854238.ece/ALTERNATES/s615b/Pimple-macro.jpg)
Five types of spot you should never squeeze or pick - and the two you can have a go at - Mirror Online
![Spybuster-radar: the middle visualizes the user. The black dots mark... | Download Scientific Diagram Spybuster-radar: the middle visualizes the user. The black dots mark... | Download Scientific Diagram](https://www.researchgate.net/profile/Alexander-De-Luca/publication/221270388/figure/fig1/AS:305403775733766@1449825342618/Spybuster-radar-the-middle-visualizes-the-user-The-black-dots-mark-possible-privacy.png)
Spybuster-radar: the middle visualizes the user. The black dots mark... | Download Scientific Diagram
![My dog has a black dot with a red ring around it. Looks concerning and I just seen it for the first time today... don't My dog has a black dot with a red ring around it. Looks concerning and I just seen it for the first time today... don't](https://f01.justanswer.com/kD4vB6fN/e6071359-df94-496a-8aef-e2612d7ab2c2.jpeg)