Why is my 4-month-old puppy losing hair all over? Is it allergies?
Updated On September 23rd, 2025
My pup is 4 month.He has got some allergy because of which his hair is falling from all over. Help please
2 Answers
Most Helpful Answer
Published on August 7th, 2018
Poor pup! It would be best to bring him to a vet for a complete exam and to have a sample taken from the areas where there is hair loss. Allergies can definitely play a part in hair loss, however ruling out other issues such as parasites (fleas, ticks, even internal parasites), illnesses, or fungal/bacterial infections is best to do as well. If allergies are suspected, your vet can work with you to try a diet change for any food allergies, or get started on a medication to treat any environmental allergies. Until you can get to the vet, placing an Elizabethan (cone) collar or T-shirt on your pup is best to keep him from licking and scratching at the areas where there is hair loss. This can help prevent the spread of any infection or prevent a secondary infection from taking hold.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on March 5th, 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. I recommend making an appointment to have Toby 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. The link below has some information on looking after orphaned puppies, in case you need any help with that: https://veterinarypartner.vin.com/default.aspx?pid=19239&id=4951456 Good luck!
1Pet Parents found this answer helpful
Health & Wellbeing
My dog Pepper (20lbs, 3 months old) has been itchy as hell since the day we adopted her, and we have tried everything. Two different antibiotics, changed her food, using medicated shampoo, lots of omegas, and today I noticed she is losing hair on her
Thanks for using Boop by Petco! This is possibly due to allergies. It really comes down to figuring out what is causing her 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 envir
Updated on September 24th, 2025
New Pet
My puppy is losing little spots of hair on her face and shoulders amd legs and sides. There isnt a rash or any sores that are making her itch and its not affecting my other dog. Its slowly getting worse on her there are some places its getting thin.
Hi, and thanks for your question. This is probably due to an allergy, although it could also be infection or mites. First of all, in order to rule out skin parasites, you will need to treat with a high quality flea treatment, then ask the vet to perform a skin scrape - this might reveal an infection or a mite infestation. If all of those came back negative, the next step is to treat the allergy symptomatically and try to discover the cause of the allergy. Three main type of allergies are usually affecting pets: food allergies, flea and parasite related ones and environmental type (allergens coming from trees, pollens, dust etc etc). Some medications can be given by the vet in order to repair any possible skin lesions (like steroids and antibiotics). Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.
Updated on September 24th, 2025
Health & Wellbeing
Hi there! My puppy (poodle, lab, Something mix with long hair) is excessively itching and the hair is falling out at the affected areas. I think it’s slowly covering more chunks of her body. Raised pink little bumps that have a puss like substance. T
Thanks for using Boop by Petco! This is possibly due to allergies. It really comes down to figuring out what is causing her 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 envir
Updated on September 24th, 2025
Health & Wellbeing
My 17 week old puppy has these patches of loss of hair and there bumps that kinda look like little blackheads or pimples what could this be .? Wormed with nexgaurd spectra & up to date with vacs & heartwarming also ?
This is probably due to an allergy, although it could also be infection or mites. First of all, in order to rule out skin parasites, you will need to treat with a high quality flea treatment, then ask the vet to perform a skin scrape - this might reveal an infection or a mite infestation. If all of those came back negative, the next step is to treat the allergy symptomatically and try to discover the cause of the allergy. Three main type of allergies are usually affecting pets: food allergies, flea and parasite related ones and environmental type (allergens coming from trees, pollens, dust etc etc). Some medications can be given by the vet in order to repair any possible skin lesions (like steroids and antibiotics). Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.
Updated on September 24th, 2025
New Pet
I have a 3 year old female lab. She had pups in March. Recently she’s been losing a lot of hair, as well as itching & scratching, causing sore spots all over. She also had this happen last year after whelping her 1st litter of pups. Could this be hor
This is probably due to an allergy, although it could also be infection or mites. First of all, in order to rule out skin parasites, you will need to treat with a high quality flea treatment, then ask the vet to perform a skin scrape - this might reveal an infection or a mite infestation. If all of those came back negative, the next step is to treat the allergy symptomatically and try to discover the cause of the allergy. Three main type of allergies are usually affecting pets: food allergies, flea and parasite related ones and environmental type (allergens coming from trees, pollens, dust etc etc). Some medications can be given by the vet in order to repair any possible skin lesions (like steroids and antibiotics). Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.
Updated on September 24th, 2025
Health & Wellbeing
My puppy has small red bumps on skin. He is always itching and sometimes, it became wounds. He has hair loss. He eats dog food ever since. It seems like it's a dog allergy. What can I do to cure my puppy?
Oh my. Poor puppy. His skin is very suspicious of Demodexx mites or Scabies. An underlying flea allergy is also possible. Food allergies are typically not seen in pets this young. On average we see food allergies arise around 2 years of age because they develop over time. I would highly recommend taking Hansung in to your vet to have the skin tested for mites first, especially since this is a vet likely cause. If it is mites then the vet can prescribe medicine to rid the mites and also antibiotics to treat for that severe skin infection he has as well. There are no over the counter products that will help his skin at this point. Poor guy. With proper care and a vet visit you should be able to get a handle on your pet Hansungs skin condition and secondary skin infection. Best of luck to you and take care.
Updated on September 24th, 2025
Health & Wellbeing
My French mastiff is 9 months old losing massive amounts of hair. He is bald in spots now what can I do what is it? Please suggest medicine or food diet for him
Causes of hair loss could include external parasites such as fleas and mange mites, and allergies (we can have allergies to food or things in the environment such as pollen/grass/dust) and sometimes infections of the skin with bacteria or yeast. I would recommend a visit with your vet to have a skin scrape done to be sure we don't have mange mites present that need treatment. I would start a flea preventative such as Advantage (available over the counter) or your vet also has prescription medication for this issue. You can also refer to this article for ideas on how to manage him until your vet is able to examine him: https://www.petcoach.co/article/5-things-you-can-do-at-home-to-keep-your-dog-s-allergies-at-bay-t/
Updated on September 24th, 2025
Health & Wellbeing
I'm fed up doing everything but my dog hair is falling excessively non stop even if I touch them hairs are falling. When I comb her a pouch of hair collects everyday. What is the reason behind this. Treated her for flea and ticks, good diet, deworme
Thanks for using Boop by Petco! This is possibly due to allergies. It really comes down to figuring out what is causing her allergies so that they can be treated or the specific allergen avoided. 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. Aller
Updated on September 24th, 2025
New Pet
My 3 week old puppy has bald patches over her body. What can this be. It's a miniature chuawawa breed
Hi, and thanks for your question. This could be due to an allergy, although it could also be infection or mites. First of all, in order to rule out skin parasites, you will need to treat with a high quality flea treatment, then ask the vet to perform a skin scrape - this might reveal an infection or a mite infestation. If all of those came back negative, the next step is to treat the allergy symptomatically and try to discover the cause of the allergy. Three main type of allergies are usually affecting pets: food allergies, flea and parasite related ones and environmental type (allergens coming from trees, pollens, dust etc etc). Some medications can be given by the vet in order to repair any possible skin lesions (like steroids and antibiotics). Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be
Updated on September 24th, 2025
Health & Wellbeing
He has patches of hair missing like he has manes
This can be caused by various reasons such as fleas, mites ,fungal infection, bacterial infection and allergies. the first 4 needs to be ruled out before we start treating for allergies. in order to do that first de-flea him with a high quality flea treatment such as advantage spot on, if it doesn't help - take him to the vet in order to check for/treat the other possibilities. If everything is ruled out, then an allergy treatment can be started. Usually an hypoallergenic food is a good way to start together with anti histamines. if it doesn't help - the best solution is a medication called Apoquel which treats allergies with great success and without side effects.
Updated on September 24th, 2025
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