My cat is sneezing blood. Could it be from old kitten flu or serious?
Poor cat. Over 90% of cats with acute sneezing discharge are infected with herpesvirus and calicivirus. These viruses are usually exposed to cats when they are young and cats seems to recover from them but they continuously cause irritation, erosions, and inflammation of the upper respiratory tract (nasal passages) over time which can lead to mild nose bleeds.
However there is also a possibility that your kitty could have a coagulation problems that is causing the bleeding as well. Therefore it is best to get kitty seen by your veterinarian for a coagulation profile in case kitty needs more extensive treatment to resolve this.
If kitty is negative for any bleeding disorders or any other potential causes of nose bleeding (i.e. fungal, allergic, etc), then the extent of treatment will most likely be 1) Anti-viral medication (Lysine-availlabe over the counter at your local pet store or at your vet clinic), 2)Antibiotics- to treat any secondary infections present, 3)Steroid or NSAID therapy to help ease inflammation of the nasal turbinates. I would recommend scheduling an appointment with your cat's veterinarian soon to get the proper testing and treatment your cat needs for his care.
Updated on September 23rd, 2025