Why is My Squirrel Hairless From His Neck Over His Back?
If your squirrel is bald from his neck to the base of his back, you may think that he has a rash caused by mange. But a rash would be a symptom of a much more serious problem – dermatophytosis. Dermatophytosis attacks the hair shaft as it emerges from the skin. The result is brittle hair and patches of baldness. Fortunately, this skin disease is not fatal and will subside over time. You should be able to spot the rash on your squirrel when the weather gets warmer.
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Notoedric mange
If your pet squirrel is hairless from his neck to his back, he could be suffering from notoedric mange, a disease caused by microscopic mites that burrow into the skin. Different species of the mite cause the disease, but they all have the same symptoms. Sarcoptic mange affects wild canids, such as red foxes, gray wolves, and other large mammals. Notoedric mange is a squirrel-specific disease, and it has been reported in eastern gray, red fox, and fox squirrels. It is not known to infect humans, but it can cause severe skin irritation and hair loss in infected animals.
Notoedric mange in squirrels is caused by a parasitic mite known as the squirrel mange mite. Once infested, the mites burrow into the skin and cause redness, irritation, and hair loss. Though not fatal, this disease can lead to anemic squirrels, making them easier to hunt.
Notoedric dermatophytosis
Notoedric dermatophyses in squirrels is a rare but extremely annoying viral disease that causes severe skin rashes and hair loss. Symptoms vary from animal to animal, but can include bare patches down the spine or on the face and tail. The fur on affected squirrels may be completely or partially lost, and the animals may be unable to live without their food and shelter. Fortunately, the condition is curable in many cases with a veterinarian’s prescription.
Although not deadly, this condition is very uncomfortable and can even lead to death if the squirrel does not receive treatment. Good nutritional support is essential in speeding up recovery. The fungus that causes the disease is called Notoedric dermatophysis, which is caused by a fungus. Coconut oil contains Lauric and Capric acids, which are antifungal. Luckily, “Chip” is frequenting my feeder and appears healthy.
Notoedric squirrel pox
Squirrel pox, also known as squirrel fibroma, is a common viral disease that affects the skin of squirrels. The virus is spread through insect bites. A squirrel with the pox will develop skin tumors that resemble notoedric mange. These tumors may not cause further problems for the squirrel, but can spread to other parts of the body such as the kidney, lymph nodes, or liver.
The symptoms of the disease include skin ulcers, lesions, scabs, and swelling near the eyes, feet, and genitalia. The disease may also cause a secondary bacterial infection, or septicemia, in some cases. Only one of the infected animals died from notoedric mange. The disease usually leads to death after a long, painful experience. In rare cases, an animal may die.
Dietary problems
One reason your squirrel is bald from the neck to the back could be dietary problems. A squirrel suffering from a magnesium deficiency has problems communicating with the other cells in his body. Calcium is essential for a squirrel’s health and plays a key role in all of its body functions. Each cell contains water and small amounts of dissolved minerals, including calcium. These minerals allow cells to communicate with each other through small electrical impulses. Without cell-to-cell communication, organs cannot function properly.
Genetics
The black fur of squirrels is unusual for mammals, but the black coloring has its own advantages. The Black Fur gene may have been inherited from its common ancestor from the melanistic Fox squirrel, Sciurus niger. But it could also be a recent addition, picked up from Grey squirrels by interbreeding. The genetic difference between Red and Grey squirrels is not very complex, and it is possible that a black Red has come into existence in the U.K., probably through escape from private zoos in the U.S.
The Black and Red subspecies of Red squirrels exhibit bleaching of their tails, especially during summer pelage. Although blonde tails are considered a distinct trait in the British subspecies, some studies have found that there is a strong individual component in the colour of the tail. For instance, some Red squirrels in the British Alps are completely hairless from neck to back, but a few red squirrels in the same area can have a blonde tail.
What are the possible causes of a squirrel losing hair on its back and neck?
There are several potential causes for a squirrel to lose hair on its back and neck including mange malnutrition stress and certain medical conditions.
What is mange?
Mange is a parasitic skin disease that can affect a variety of animals including squirrels.
It is caused by mites that burrow into the skin and cause severe irritation.
What are the symptoms of mange in squirrels?
The symptoms of mange in squirrels include hair loss itching redness and inflammation of the skin and scabbing.
How do squirrels get mange?
Squirrels can get mange from contact with other animals that are infected with the mites or from contact with contaminated bedding or other materials.
Is mange contagious to humans?
Mange is not contagious to humans.
How is mange treated in squirrels?
Mange is treated with topical or oral medications that kill the mites.
In severe cases hospitalization and intensive care may be necessary.
What are the potential consequences of untreated mange in squirrels?
Untreated mange can lead to severe dehydration secondary infections and even death.
What is malnutrition?
Malnutrition is a condition that occurs when an animal does not receive enough of the nutrients that it needs for proper growth and development.
What are the symptoms of malnutrition in squirrels?
The symptoms of malnutrition in squirrels include poor growth low energy levels and dull or brittle fur.
What are the potential causes of malnutrition in squirrels?
The potential causes of malnutrition in squirrels include inadequate diets gastrointestinal parasites and disease.
How is malnutrition treated in squirrels?
Malnutrition is treated by correcting the underlying cause and providing the squirrel with proper nutrition.
This may include supplements special diets or medications.
What are the potential consequences of untreated malnutrition in squirrels?
Untreated malnutrition can lead to stunted growth organ damage and even death.
What is stress?
Stress is a state of mental or emotional tension that can be caused by a variety of factors including fear fear of predators and changes in environment.
What are the symptoms of stress in squirrels?
The symptoms of stress in squirrels include hair loss anxiety and changes in behavior.
What are the potential consequences of untreated stress in squirrels?
Untreated stress can lead to weakened immune systems increased susceptibility to disease and even death.

Jessica Watson is a PHD holder from the University of Washington. She studied behavior and interaction between squirrels and has presented her research in several wildlife conferences including TWS Annual Conference in Winnipeg.