Hair loss in dogs can be problematic for many pet owners. It is very difficult to see your dog lose his hair continuously. Hair loss in dogs is medically known as alopecia.

Alopecia is defined as the partial or complete loss of hair from a specific area where it generally grows. Signs of hair loss in dogs include dry and brittle hair, more than average hair loss, and the appearance of irregular, circular bald patches.

If you are in search of why is your dog losing hair? OR Is it normal for dogs to lose hair? OR Can dog lose hair from stress? OR what causes a dog to shed excessively? And how can you treat your dog hair loss, and what are home remedies?  Then read the article below.

Common reasons

Some possible reasons for hair loss in dogs are 

  • Allergies 
  • Infections 
  • Nutritional deficiencies


Hair loss in dogs is frequently caused by allergies. Many reasons cause allergies in dogs, such as food allergies, weather changes, environmental triggers, and parasites like fleas and mites.

Dog hair loss will occur in spring and fall, and its part of the seasonal change in shedding dogs. In the spring season, the dog loses its winter coat.

Some common signs of allergies are that your dog continually scratches and bites the itchy, red, and irritated areas on that particular part of the skin; most commonly, dogs lose hair from the tail region.

A single bite or pollen could be the cause of inducing an allergic reaction in the dog that will last for hours.

Some familiar food sources that cause an allergic reaction in dogs are:

  • Dairy products
  • Wheat
  • Beef 
  • Soy 
  • Corn products 
  • Chicken meat

Some common environmental triggers are:

  • Mold
  • Pollen
  • Dust Mites
  • Fleas

Parasitic infestation

Parasitic infestation in dogs can occur by different parasites like:

  • Ticks 
  • Mites 
  • Fleas 
  • Lice 
  • Worms 
  • Fungus 


Ticks are one of the dangerous parasites, especially the paralysis tick. When the ticks attach to the dog’s bodies, the dog will scratch the body until the tick is removed. 

During this process, the dog can get a bald patch from all scratching, which can quickly become infected.

Hair loss in the abdomen and chest region will occur as a result of continuous scratching. Therefore, it is better to remove ticks with the help of special tick tweezers.


Mites are typical habitats for warm, moist areas on the dog’s body, such as the ears and armpits. Mites are a continuous source of discomfort for your dog, and your dog will feel extreme itching.

As a result of continued itching, your dog will scratch until the skin is opened, which can cause infections if left untreated.


Fleas are commonly present in the warmer months and can be caught by other dogs and flea eggs on rugs and bedding. Your dog will continually scratch and bite on the flea area to provide relief.

This scratching and biting can cause the dog to lose hair and can lead to bald patches if left untreated. It is crucial to break the flea cycle, as fleas often lay eggs on dog beds and rugs and can lie dormant for months waiting for a host.


Dog hair loss is also caused by lice. Not only does it cause significant discomfort and itchiness to the skin, but it also causes skin allergies and hair loss in dogs.


The worms interfere with the dog’s ability to process nutrients; as a result, hair loss occurs in dogs. The worms are present inside the dog’s body and are transmitted from one dog to another by eating debris and licking the hindquarters.

Dogs suffering from roundworms show signs of tiredness and fatigue. Therefore regular worming can prevent dog hair loss.


Yeast infection can cause hair loss in dogs. Two common fungal infections present are a fungal infection caused by the candida fungus, and another fungal infection is caused by ringworm.

Yeast infection in dogs is caused by low immunity due to malnutrition. Ringworm infection is only called because of its appearance. Fungal infections are controlled by disinfecting dog beds and toys.

Cushing’s disease

Cushing’s disease, also known as hyperadrenocorticism, is caused by an overproduction of a hormone known as cortisol.

Cushing’s disease occurs in dogs over the age of 6 and shows symptoms of increased frequency of eating, drinking, urinating, panting, and hair loss.

Nutritional deficiencies

Poor nutrition or a diet of low nutritional value foods can also be the cause of dull coat and dog hair loss. Not all dry foods will be suitable for your dog.

Is it normal for dogs to lose hair? 

Yes, it is normal for most dogs to lose hair at some time of the year, mainly during the spring and fall season. Seasonal shedding occurs as a result of temperature change. This process is sometimes called “blowing coat.”

As the warmer weather approaches, dogs shed their winter coats to make way for lighter summer coats.

Can a dog lose hair from stress?

Dogs that lose their hair without the disease can be due to stress. Many reasons can cause stress, such as a sudden change in place, a change in life (separation from a human being, or a new entry into the family). 

Constant scratching and licking due to stress can cause hair loss in dogs. If your dog is under stress, contact your vet for advice.

Treatment of hair loss in a dog

Treatment for alopecia in dogs can depend on the cause. 

Antibiotics, antifungals, and steroids are often used topically or orally to treat skin conditions and inflammation. Antihistamines can be used for allergic reactions. Medicated shampoos can manage several infections.

Flea and tick control medicines are used to prevent alopecia. Some hormonal treatments and thyroid medications can be used to treat thyroid problems.

The Elizabethan collar is used to prevent chewing and licking in dogs that cause alopecia. A lot of supplements like fish oil, vitamin A, and vitamin E can help with dry skin and certain skin infections. It also keep the coat shiny and in good shape.

Home remedies 

There are also many home remedies for dog hair loss. A natural home remedy for dog hair loss is adding apple cider vinegar to the dog’s water to stimulate hair growth or a tablespoon of flaxseed oil in their food.


Hair loss in dogs can be generalised throughout the body or in specific areas of the body. Fortunately, hair loss in dogs is not a life-threatening condition. You just have to prevent the possible causes of hair loss.

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