Why is my dog suddenly losing chunks of hair? What's the cause?

There are many reasons for a dog to lose hair and have bald patches. Common ones are: * low thyroid level * Cushing's disease * flea allergy * other allergy * auto immune disorder * bacterial or fungal infection I strongly recommend you have Annie Mae examined by your vet to try and get to the bottom of what is causing her symptoms. We cannot diagnose over the internet.

Thanks for using Petco Pet Education Center, formerly Petcoach! Yes, mange is possible. Other possibilities include allergies, ringworm, immune-mediated conditions, among many other possibilities. I recommend that you have her evaluated by your veterinarian for further assessment and treatment. In the meantime, if she appears to be scratching or licking at it, you can use an e-collar to try to prevent further injury. Good luck!

Poor Baby! She could have a bacterial skin infection, allergic dermatitis, flea allergy, mites, fungal infection, endocrine disease, etc. You could bathe her with an anti-microbial dog shampoo and see if that helps. If the condition persists then she needs to be examined by a vet for treatment. Your vet can do a skin scrape, cytology, and culture, if needed, to help diagnose and then treat. Also, use a flea prevention, like Frontline, NexGard, Bravecto, etc. to prevent fleas and ticks.

Thank you for using Petco Pet Education Center, formerly Petcoach! Hair loss in dogs can be caused by many conditions including bacterial or fungal skin infections, skin mites, allergies, hormonal imbalances, or nutritional deficiencies. You may need to take her to a different veterinarian for a second opinion and additional tests such as blood work. You can also make an appointment with a veterinary dermatologist who can work with you and Alexzi to find to cause of her hair loss.

Thanks for using Petco Pet Education Center, formerly Petcoach! If he is itchy at all then it could be 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. 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!

Hi and thanks for posting on Petco Pet Education Center, formerly Petcoach! If this is the first time this has occurred, it may a bacterial infection. If this appears at certain times of year, it could be related to a seasonal allergy. If this has been a chronic issue and does not seem to worsen during a particular time of year, it may be due to a food allergy. Another possibilities may be a parasitic infection of the skin such as mites. I would recommend Frankie see her veterinarian soon for a work up on this skin issue. Her veterinarian may start with a skin scraping to check for parasites and may place Frankie on antibiotics or other medications such as antihistamines or other drugs to help get the inflammation down and help the skin to heal. Food trials or allergy testing may be recommended later by your veterinarian depending on whether your vet thinks it is related to an allergy. I hope this helps!

It could be that Munchie has a skin infection or a fungal infection causing his fur to fall out in chunks. It could also be due to fleas, mites, ringworm, or a hormonal imbalance. You need to take him into the vet. The vet can diagnose what is causing his hair loss, and can treat him for it. I'd call his vet first thing in the morning to make him an appointment. Best of luck, I hope this helps!