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Dog hair loss: Causes, treatment and prevention

Dogs lose hair in many cases not due to physiology but from many causes. Join DogsBreed to find out the causes, treatments and prevention of hair loss in dogs!

Dog hair loss is a normal physiological phenomenon. However, when you see your dog’s hair falling out too much or the hair falling out in a certain area of the body, it may be that your dog is having an unhealthy health problem. This article will help you learn more about the causes, prevention and treatment of dog hair loss to help your dog maintain a healthy condition.

Is a dog hair loss entirely physiological?

Dog hair loss can be considered a very normal physiological phenomenon and they are in the process of developing, with no health effects. The hair cycle is twice a year, and there are dogs that are closer to the “sexual” season who tend to lose more hair. It may depend on the climate conditions in which the dog loses hair to lower the body temperature in the summer or to change a new coat of hair to keep warm in the winter.

However, when dogs suffer from multiple hair loss or hair loss with abnormal symptoms such as itching, skin rash is not just a physiological feature, but a sign of hair loss in dogs. Right now, you need to find out and have timely remedies.

Causes of dog hair loss


Allergies are a common cause of hair loss in dogs. Dogs are very agile, nasty, so they go into bushes or places that aren’t clean. Therefore, it is susceptible to parasites such as squirrels, fleas, or pollen, molds, clinging to the skin and causing diseases.

Dogs lose hair due to allergies
Dogs lose hair due to allergies

In addition, dog hair loss can be caused by food allergies or allergies to inappropriate bath milk. Typical symptoms of dog allergies are itching that leads to excessive scratching, bite, and dogs hair loss.

See more: Tips to help you take care of your dog’s health effectively

Parasitic or bacterial infection

Mushrooms, bacteria, or parasites will cause their dogs to suffer plaque-by-plaque dog hair loss in areas on the chest, the abdomen, around the ears, the eyes, etc. It is accompanied by itchy skin and red swelling due to scratching, bite, licking wounds repeatedly and can spread to other areas of the body. In the case of worms, the dog will have round or irregular hair loss, the skin layer is inflamed and infected.

Dogs lose hair due to parasites
Dogs lose hair due to parasites

Lack of nutrients

Diet also greatly affects the dog health. Without adequate nutrition, the dog’s body will lack beneficial vitamins and minerals, causing dog hair loss and dry skin. Therefore, we should adjust daily meals to ensure all the necessary nutrients for dogs to grow healthily, avoid skin diseases and make their fur smoother and shinier.

Dogs lose hair due to lack of nutrients
Dogs lose hair due to lack of nutrients

Hormonal disorders (Cushing’s disease)

Cushing’s disease is one of the common causes of hair loss in long-lived dogs. Typically, Cushing’s disease occurs because the body produces more of the hormone cortisol or during treatment of dogs that have abused corticosteroid medications.

Dogs lose hair due to Cushing's disease
Dogs lose hair due to Cushing’s disease

This exposes the dog’s tissues to high cortisol levels for long periods of time. The result is dark skin, muscle atrophy, bloated abdomen and loss of appetite, and body fatigue leading to the dog losing hair.


Breeding is also one of the major causes of dog hair loss. The purpose of breeding is to produce later breeds that have genetic advantages, but can accidentally produce unwanted characteristics, with genetic diseases. Some breeds of dogs with genetic loss include Mexican Xolo, Dachshund, Chihuahua dog or Whippet.

Heavy friction when exposed to the ground

Those areas of the dog’s skin that are frequently exposed to the ground, such as the elbows and chest with high friction, can cause a dog to lose hair.

This happens in large and heavy dogs, such as the Tibetan frog. When lying down, it creates friction that holds these points of contact with the ground, which can cause bottlenecks to appear, causing dog hair loss and preventing hair from growing again.

What do you do when you find a dog with hair loss?

What to do when you discover your dog is losing hair?
What to do when you discover your dog is losing hair?
  • Step 1: Find the itchy skin area and do not let your dog scratch or bite the itchy skin area
  • Step 2: Using the prepared hydrogen peroxide and water solution, wipe the itchy and infected skin to remove dirt
  • Step 3: Use anti-itch spray and spray it on the surface of the skin around the itchy area
  • Step 4: Apply antibiotic ointment to the infected skin and cover with a medical patch
  • Step 5: Use medical gauze to wrap 2 rounds and apply tape over it to secure the wound
  • Step 6: Do not let them go outside, use a leash and spray the tape area with a bitter taste water to prevent them from touching that area with their mouths.

Treatment and care of hair loss dogs

How to treat and care for dogs with hair loss
How to treat and care for dogs with hair loss

Nutrition building

Proper diet and proper care will help your dog improve health much better, less hair loss and will have a healthy fur. It is recommended to add Omega-3s (abundant in meat, fish, beans, olive oil), B vitamins to your diet, and to provide plenty of water every day, avoiding foods with too much spices.

Use the medicine.

The use of dog hair loss medication is also one of the best treatments and has many forms such as injections into the body, extracranial or oral medications. Take your dog to a veterinarian for advice and treatment support. Also, some medicines can stimulate your dog’s hair to grow faster, so consider this option!

Brush your hair regularly

Regular brushing will indirectly remove the broken old fur layer, helping to remove baldness and removing some dirt from the dog’s fur. You can spray the fur to stimulate the new hair to grow stronger, more smooth shade. You can use a dedicated dog fur brush, brushed gently and scratched to help them relax.

Keep the environment clean and airy

In the world, in summer the climate is warmer and more humid, this is a time when harmful agents grow very strongly. In the falling season, use a vacuum cleaner to clean the environment in the house, keep the dog’s home clean and airy to limit the smell and prevent bacteria, molds from penetrating. The dog’s pad needs to be cleaned at least once a week.

See more: Causes and treatments for dogs with skin fungus and hair loss

How to prevent a dog from losing hair

Check your health, get your dog regularly vaccinated, avoid skin diseases, you should take your medication according to your doctor’s instructions and give it regularly.

How to prevent dog hair loss
How to prevent dog hair loss

Complimentary nutritional supplements in daily meals, change the menu so the dog does not get bored, it is not recommended to feed foods that are too salty.

Regular hygiene for dogs to stay clean and fragrant with dedicated dog shampoos, do not use human products on the dog’s body.

Regularly take your dog for a walk and give them exercise, which works to improve health and boost resistance. Hygiene and control the dog’s habitat to ensure it’s always clean and airy.

Brush your dog regularly at least once a day, you need to shave and brush it to help your dog feel comfortable, no discomfort and feel your love for them.

Veterinary experts say one of the main causes of dog hair loss is poor hygiene. Dog bathing will help minimize the number of dead cells, thus limiting dog fur and dirt that clings to the fur flying around the house, clinging to carpets, clothes and food. Therefore, it is recommended to choose the right anti-hair loss milk for dogs to ensure that the health of the dog is always best protected.

Through the above article we shared, we hope you will have more useful information in the treatment and prevention of dog hair loss diseases. Good luck with you and your pets!

Alva Thomas
Alva Thomas
Alva Thomas expert in training and caring for pet dog breeds. Whether he spending quality time with her own furry companions or contributing to websites such as Dogsbreed.org and Animalpet.com, dedicated to our canine.

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