Kitten with a lump on the neck

There are many reasons why a kitten might have a lump on its neck, which could be due to an inflamed lymph node, a bacterial or parasitic infection, or a local allergic reaction to a vaccine. If the lump is in the area of the vaccination site, it is likely a local allergic reaction to the vaccine. A specific diagnosis should be made based on the lump, and it is recommended to bring the kitten to the vet for examination.

When a pet owner discovers a lump on their kitten's neck, they can first examine it themselves. Factors such as the lump's hardness or softness, whether it has a watery波动感，and whether the surface is reddened can help determine the cause of the lump.

If you can clearly feel a波动感 within the lump, it indicates a high likelihood of infection. Depending on the location, it could be a lymph node infection or a bacterial infection with pus. Check for any wounds around the lump, and if present, handle them promptly. If there are no wounds, take the kitten to the vet for aspiration testing.

If the lump is reddened and has a solid texture, it indicates inflammation and may be accompanied by pain. It could also be a parasite bite or a skin disease. Check whether the kitten has been dewormed on time and whether there is a parasite infection. Perform external deworming measures as needed.

In addition to these pathological issues, a local allergic reaction to the vaccine can also cause a lump at the injection site. Wait for a period of time to see if there are any changes. If the lump continues to swell, it is necessary to take the kitten to the vet for examination and, if necessary, removal.