cat vomiting and bleeding from bottom

i have a cat that has been bleeding from his bottom area and vomiting

Hi,

Without more specific information I can't really narrow down the wide range of possiblities. But due to the combination of vomiting and bleeding take him to the vet as he could become dehydrated quickly.

The blood could be coming from his anus, and with the vomiting it seems like either a viral etiology or a possible foreign body. These are just two possibilities. Please see your vet.

Dr. Chris