Can any medical professionals here detail me why my toenail would be bruised when I didn't hit it or injure it?

My big toe is bruised under the staple and I haven't injured it at all. It have been this track for a couple of weeks now. It doesn't hurt, it purely looks like it does. Any philosophy? Any dangers?Can any medical professionals here detail me why my toenail would be bruised when I didn't hit it or injure it?
If I be you I would see a doctor. Here no one can relay you not even a doctor because such things must be seen and examined. Anyway I hope that will make well soon.
Perhaps it is a fungal infection rather than a bruise.
Are you diabetic?
The foot are usually the first part of the body to become desensitized when family have diabetes. (I know, I own diabetes) So perhaps you hurt it and don't 'feel' it...
Not trying to alarm you, just share what I know.
I hope this isn't the bag for you.
Alternatively, perhaps you own a fungal infection?
Best of Luck to you...