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My cat keeps losing fur on its neck. What could be the cause?

Updated On September 23rd, 2025

My cat has a quarter size patch of fur missing from his neck. This is the second time in a year it has happened. What's wrong?

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5 Answers

Most Helpful Answer

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Answered By Jessica Desrosiers

Veterinary Technician

Published on December 15th, 2015

[Hair loss](https://www.petcoach.co/article/causes-of-hair-loss-alopecia-in-cats/) can be caused by allergies or infection of the skin, and in severe cases by metabolic issues. Chronic stress or excessive licking of an area can also lead to hair loss in just one particular place. Preventing your cat from licking and chewing at the area with the use of a T-shirt or Elizabethan collar (cone) may help. Examine the area for redness,parasites, bleeding, bruising or discharge. If you see a target-like or red "ring" of irritation, it may indicate a fungal infection called [ringworm](https://www.petcoach.co/cat/condition/ringworm/), which can be easily spread to other people and pets so should be handled carefully. If you do see anything suspicious, consider an exam with your veterinarian for a definitive diagnosis and treatment. Hair regrowth may take a few months depending on how much hair is lost as well as the underlying cause.

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32Pet Parents found this answer helpful

Related Answers from Veterinarians

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on April 15th, 2018

    Thanks for using Petco Pet Education Center, formerly Petcoach! This is possibly due to allergies. It really comes down to figuring out what is causing his allergies so that they can be treated or the specific allergen avoided. A secondary infection is likely and also needs to be addressed. There are many things that can cause allergies though in most cases they can be broken down into 3 big categories: flea, food and environmental allergies. Allergies are usually worked up in a stepwise fashion starting with flea allergies as this is the easiest and cheapest to take care of. If not on a flea preventative, then it would be a good idea to get started on one. If already on one then it would be a good idea to change to something else (there are many new products out in the market). If not improved in 1-3 months then it is time to move on and check for food allergies by switching to a novel diet (new protein and new carbohydrate). If that does not seem to be the issue then you are left out having to check for environmental allergies which require blood and/or skin tests. Allergies can be very frustrating to deal with at first but so rewarding at the end when we are able to treat them effectively!

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    Answered By Linda G, MS, DVM

    Veterinarian

    Published on July 21st, 2018

    Hello. Without a picture, it is difficult to comment definitively, but if Peaches goes outdoors, she may have gotten into a scuffle with another cat, or she may have scratched the hair out on her own. Fleas, ear mites & allergies could cause a cat to scratch enough to pull out hair. If she continues to lose hair, or develops any sores on her head, around her ears or neck, you probably should see your vet to diagnose the problem. Thanks for using Petco Pet Education Center, formerly Petcoach.

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    Answered By Shaneez Wallani, DVM

    Veterinarian

    Published on December 30th, 2019

    Hair loss can be caused by bacterial, parasitic or fungal infection, dietary or environmental allergies or sensitivities, immune system disorders, or a combination of the above. In cats with hair loss like Dunkin has in the picture, one common cause can be infection by mites that can live in the hair follicles and lead to hair loss, and secondary bacterial and fungal infections that can develop. Another potential cause can be a fungal infection due to ringworm. I recommend making an appointment to have Dunkin seen by your veterinarian to help determine the cause of the hair loss as soon as you can. The vet will likely want to look at a sample from the area (taken by a procedure known as a skin scraping) and examined under the microscope to determine what kind(s) of infection may be present and to figure out what medication is appropriate for treatment. Good luck!

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    1Pet Parents found this answer helpful

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on September 11th, 2018

    Hi there! Thanks for using Petco Pet Education Center, formerly Petcoach! There is a variety of reasons that can explain alopecia or hair loss. The causes can easily be differentiated by the clinical signs associated with it and the physical exam findings. If Severus is only showing some hair loss without scratching or overgrooming then it could conditions such as alopecia areata that can affect cats and usually resolves on its own. If there is evidence of scratching and you start noticing some redness or irritation associated with it, then other conditions such as allergies are possible. If you notice him overgrooming himself in that area then it could be something like psychogenic alopecia which is more of a behavioral issue. I think that since he is not having overt clinical signs and it is mostly hair loss, I think it is possibly transient and could resolve on its own. You can monitor this closely and if it does not resolve or it worsens then have him examined by your veterinarian. Good luck!

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