Bleeding breast tumor

[Willow]

hi everyone,
My 1 year old girl got diagnosed with a tumor on her breast less than a week ago and it has started to bleed. Yesterday I noticed it enlarge(even though she’s on medication meant to prevent this) and this morning woke to it having bled significantly. After 30 mins it stopped however and now 12 hours later it’s enlarged again. I have no idea what is going on and am really scared for her. Does anyone have an idea?

 

[jorats]

Can you show us a picture? Tumours don't usually bleed unless it's a malignancy. And she's quite young for a typical benign mammary tumour.