Why does my healthy female GSD have black spots on her groin?
Based on the picture, that sort of just looks like dirt or grime that is clogging up some of the porous parts of Ecko's hairless skin. Alternatively, as some dogs age, they do develop anomalies and changes to their skin just as human beings do due to the normal aging process. I would first simply try and just scrub the area with some soap and water to see what it looks like afterward. If it still looks the exactly the same but is causing Ecko no problems, I don't know that I would worry about it terribly much at this time. You can certainly take her to the vet where they can take a look, perform skin scrapings, take hair samples, collect biopsies, etc. I do not believe this is necessary at this time, though. Continue to monitor her for any changes, and bring her to the vet should the area become irritated, infected, or begins to spread to neighboring portions of the body.
Updated on September 23rd, 2025