Recommended Free Tools
A little seasonal shedding can be normal. New bald patches, persistent hair loss, or a poor coat with itching, inflamed or flaky skin, odor, greasiness, sores, or discharge should prompt a call to your veterinarian. Blood or pus on the skin warrants prompt veterinary attention. Coat appearance is a clue, not a diagnosis: several different problems can look alike.
Which coat changes are concerning?
Compare what you see with your dog’s usual coat, taking breed, coat type, season, and general health into account. Shedding without bald patches or inflamed skin may be ordinary hair replacement. A new bare area or patchy loss is different from loose hair spread through the coat and deserves veterinary evaluation.
- Arrange a veterinary examination: new bald patches; ongoing or recurring coat changes; significant itching; redness, scaling, scabs, odor, greasiness, or discharge.
- Contact a veterinarian promptly: blood or pus, painful or open sores, hair loss that is expanding quickly, or a dog who seems unwell as well as having a coat change. If signs are worsening, call the clinic sooner for advice on timing.
- Keep an eye on ordinary shedding: if there are no bald spots or signs of skin inflammation, mention persistent concerns at routine care. If you are unsure whether the pattern is normal for your dog, ask your veterinarian.
These signs help you describe the problem; none identifies its cause by itself. PDSA advises seeing a vet as soon as possible when there is blood or pus from the skin (PDSA skin-problem guidance). Merck and USDA describe hair loss and abnormal skin changes that merit veterinary assessment (Merck Veterinary Manual; USDA canine skin guidance).
Why can a dog’s coat become dull or sparse?
Many conditions affect coat quality, and the same outward change can have different causes. Examples include grooming or skin-care problems, allergies, parasites, infection, inflammation, trauma, inadequate nutrition, chronic illness, stress, digestive problems, and hormonal or metabolic conditions. The pattern of hair loss and the condition of the skin help a veterinarian decide what to investigate; they are not reliable home tests.
#1 Best Overall
- SKIN & COAT NOURISHMENT: Fish oil for dogs and cat like Wild Alaskan Salmon Oil provides omega-3 fatty acids, helping maintain a shiny coat and nourished skin
- OMEGA 3 HEALTH SUPPORT: Our omega 3 fish oil for dogs and cats is packed with EPA and DHA, supporting overall pet health, supporting the immune system, joints, and heart function
- EASY-TO-MIX FORMULA: Avoid capsules with this easy salmon oil for cats and dogs; simply add a few pumps to food for a nutritious boost
- NOURISHES SKIN: This cat and dog oil for skin and coat is gentle, making it a key part of cat and dog health supplies
- BOOST IMMUNE SYSTEM: Rich in omega 3, this cat and dog salmon oil not only supports skin and coat health but also strengthens immune function and overall well-being, fitting dog health needs
For example, hair loss on both sides of the body can occur with endocrine problems, but that pattern does not establish a diagnosis. Itching may be less common with some endocrine patterns unless a secondary infection is present. A veterinarian needs to interpret such clues in context (Merck Veterinary Manual: dermatological problems in animals).
Nutrition is one possibility, not an automatic fix
Diet can affect skin and hair. An unbalanced homemade diet, inappropriate supplementation, or other diet concerns may be relevant, but a poor coat alone is not a reason to switch foods or add supplements. VCA notes that nutritional needs depend on a dog’s life stage and health, and that other causes of coat changes also need consideration. Discuss diet and skin-care changes with your veterinarian (VCA: Nutrition, Skin, and Dogs).
Rank #2
- SUPPORTS SKIN AND COAT HEALTH: Packed with Omega-3 fatty acids from salmon oil for dogs to help maintain moisture content for healthier skin and coat in dogs
- RELIEVES ITCHY SKIN: Omega-3 and DHA in omega oil for dogs work together to provide itch relief for dogs, promoting comfort and skin health with high-quality ingredients
- BOOSTS IMMUNE SYSTEM: Includes antioxidants like vitamin E, and Biotin from dog vitamins and supplements to support immune function and allergy relief for dogs itching
- PROMOTES JOINT AND HEART HEALTH: Formulated with Omega 3 for dogs to aid in maintaining joint flexibility and heart health, helping your dog stay active and vibrant
- SUITABLE FOR ALL DOGS: These tasty salmon dog treats are perfect for dogs of all sizes and breeds, offering vital nutrients and benefits to keep each furry friend feeling and looking their best
What will the veterinarian check?
The veterinarian may ask when the change started, how it has progressed, whether it itches, where hair is missing, and whether you have noticed other changes in your dog’s health. They may examine the skin and coat for parasites or secondary infection and examine hair or skin samples. Depending on the findings, testing may include skin scrapings, combing, skin smears or culture, or blood and urine tests. More testing or referral may be appropriate in some cases; the work-up depends on the dog’s signs and history.
As Merck’s pet-owner guidance explains, “Hair loss is a sign and its underlying cause must be determined for the condition to be successfully treated.” The page, last updated in May 2025, was reviewed by Karen A. Moriello, DVM, DACVD (Merck Veterinary Manual: hair loss in dogs).
Do these 3 things before closing this tab:
1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsRank #3
- Joint, Heart & Immune Support – These grain free bite supplements also support hip and joint health, immune system function, and cardiovascular activity to help your pet feel zesty from head to paw.
- Rich Omega-3 Support – Zesty Paws Omega Bites are delicious chewable supplement treats with Omega fatty acids (with EPA and DHA), vitamins, and nutrients to help dogs look and feel their best.
- Features AlaskOmega – Derived from Wild Alaskan Pollock, this premium ingredient provides a clean and pure source of omegas (with EPA and DHA) to boost your pup's wellness.
- Healthy Skin = Happy Dog! – This formula contains Fish Oil, Biotin, Vitamin C and E. These vitamins, omegas, and antioxidants may help with dry, sensitive skin.
- Soft & Shiny Coat – These daily soft chews help pets with dull, dry, brittle, and shed prone coats by providing vital natural nourishment that promotes more shine, strength, and softness for your canine.
How to prepare for the appointment
Before you call or visit, note when you first saw the change and whether it is spreading, improving, or returning. Photos taken over time can help show how the pattern changes. Also write down:
- Which areas are affected and whether the skin looks red, flaky, greasy, scabbed, or sore.
- Whether your dog is scratching, licking, rubbing, or showing pain.
- Recent bathing, grooming, diet changes, supplements, and parasite prevention.
- Any other changes, such as appetite, energy, weight, or digestion.
Share these details with the clinic so the veterinarian can assess how soon your dog should be seen. The right treatment depends on the cause, so avoid treating an unexplained coat change as though it were only a grooming or nutrition issue.
Quick Recap
Best Value
- Promotes Healthy Skin & Coat: Our dog fish oil supplements deeply nourish dry, flaky skin while reducing excessive shedding, helping your dog maintain a soft, glossy coat and overall skin health.
- Itch & Allergy Relief with Omega 3 for Dogs: Made with pure fish oil for dogs skin and coat, these chews help ease itching, redness, and seasonal allergies for healthier skin and comfort.
- Supports Hip, Joint & Heart Health: Rich in dog omega 3 fish oil, our supplement helps improve mobility, supports heart function, and enhances overall well-being for puppies, adult and senior dogs.
- Made in the USA in an FDA-Registered Facility: Our dog omega 3 supplement is carefully crafted with premium ingredients under strict safety, purity, and potency standards for the best results.
- Premium & Natural Ingredients Formulated by Veterinarians: This advanced EPA & DHA blend ensures superior absorption, supporting skin, coat, joint, and immune health for all dog breeds.
Rank #4
- Itch & Allergy Relief with Omega-3 for Dogs - with 500mg of Omega (EPA+DHA) per serving, our chewable supplement helps with hot spots, dry itchy skin, ease itching, irritated skin, stops shedding.
- Skin & Coat + Hip & Joint Supplement Combined - Omega 3 is a vital element to keep your pet active, support healthy hip and joints, brain, heart, immune health. Can be served with regular pet food.
- Bark&Spark Commitment - we are keen to give best to our furry customers and we take NO compromise when it comes to product quality. Our omega 3 bites are made in the USA, with human grade ingredients.
- Up to 3 Month Supply - with 180 salmon oil treats per jar you keep your pet healthy while not spending a fortune on overpriced supplements. Best value.
- Is Your Dog a Picky Eater? We stick to simple formulas rich in natural flavors, that could tempt a fussy eater. No hassle with pills, powder, tablets or capsules.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
