A friend had shown me a video of this doe, and told me where and when I might find her. Unfortunately she and I found each other at the same instant, and from fairly close quarters. She spooked, so I was only able to get quick shots as she bolted. This doe has to be uncomfortable! I'm so sad for her.
Other than cropping, the photo is unretouched.
Trouble is Cougars - being surprise predators - are less selective. They'll take any deer that happens by chance to come too close. Cars are even less selective. Wolves by contrast are run-after predators, that chase prey and cull out the weakest, easiest to catch.
Yes I am sure the Wildlife department is aware of it - it is pretty obvious isn't it? But it could be tumors, cysts, or parasites. I thought you ought to contact the Wildlife people so they could tell you what it is, and what is causing it, and if it is contagious.
It's amazing what you can learn from others. I wonder if it will show up in Iowa someday. I agree with Resin, the weak need to be culled. I wouldn't like to have to worry about a wolf attack, but it is less likely than a cougar attack.
Wow, it looks almost like gunshots. Perhaps she got tangled in barbed wire?
I don't know what fibroma looks like in the early stages. Sorry I can't be more help.
Sorry for the delinquent response. haven't visited DG much since ealy summer. Been spending my time outside. ;-)