Help Riley see a vet! Emergency

Hello,

My name is Mak and I am starting this go fund me for my 7+ year old Ferret Riley. I have 2 other ferrets , she is a rescue and the runt of the her litter. She’s very small and very fragile.

we found she isn’t pooping and bright blood red instead , along with her fur Receding on her tail.

she needs vet assistance ASAP ! She is an older ferret, age is unknown but we assume she’s 7+ years now. She loves her brothers and I want her to live to her fullest potential. Please don’t hesitate to share around ! We cannot afford all 3 ferrets to get this check up sadly.