Reasons for Dogs to Lose Their Hair

A dog's hair is often seen as a sign of health. If the hair or fur is very shiny and of good texture and fullness, the dog is thought to be healthy. Unfortunately, on occasion a dog may lose its hair. If the condition occurs at the change of seasons and new fur grows in quickly, the condition is simply shedding and nothing to be concerned about. However, if the dog begins to develop bald spots, a more serious condition may be present. Understanding the reasons that dogs might lose their hair can help you understand the seriousness of the situation and the chances of a full recovery.

  1. Shedding

    • Shedding is a seasonal loss of hair or fur. This is very common in most dogs, although some dogs such as poodles are known for their shedding. This is a natural process and washing and brushing the dog regularly will help to minimize the amount of hair on the couches and floor.

    Dermatitis

    • Dermatitis is an allergy to something in the environment that manifests itself in hair loss and skin irritation. There are many substances that a dog may come in contact with that can trigger this condition in a sensitive dog. According to VetInfo.com, some common irritants can include wool, antibiotics, food allergies and fleas.

    Mange

    • Mange is one of the most frequently suspected conditions when a dog presents with hair loss. This is caused by a skin infection due to mange mites. There are three different types of mange: demodectic, sarcoptic and cheyletiella. All three types of mange are named for the mite that causes them.

    Hormonal Imbalance

    • VetInfo.com states that a dog with a hormonal imbalance may lose its hair. These hormonal imbalances may be due to either the thyroid or the adrenal glands. If the condition is in the thyroid gland, it is known as either hypo or hyperthyroidism, depending on if the gland is making too much or too little of the hormones, respectively. Cushing's disease is when the adrenal gland does not properly function.