A kitten with yellow runny nose and sneezing means that the cat is sick with a cold and has inflammation in the body, and needs to take anti-inflammatory drugs to reduce inflammation. It is most likely caused by cat nasal branch. The sick cat's body temperature will rise initially, and symptoms such as sneezing, coughing, tearing, excessive eye feces, loss of appetite, and depression will appear. Later, the nasal secretions will increase and change from serous to purulent. .

There are many causes of sneezing and runny nose in cats, such as respiratory infections caused by calicivirus, herpes virus, chlamydia, and Bordetella infection. It is recommended that cats be tested for the above pathogens.