Top Facts You Need To Know About Seasonal Flank Alopecia In Dogs!

The seasonal flank alopecia is precisely what it seems like, although it assists to understand that the term "alopecia" indicates the loss of hair. With the seasonal  flank alopecia, the canine loses the hair in flank region on seasonal basis.

Various dogs appear to select various seasons to shed their hair (spring and fall are well-known) and when season changes, generally the hair grows back. Oftentimes a canine will miss a season just to lose the hair again in the coming year. The most affected canines are English bulldogs, Airedales, and Boxers though several other breeds are already affected.


The loss of hair is generally limited to flanks (the area simply ahead of rear legs) although often "bridge" of nose is engaged. The skin usually is pigmented darkly in the places of the hair loss. However, both flanks usually are influenced symmetrically and occasionally there's skin infection found in the hair loss areas. In some cases, the hair grows again in another color than original hair. A few dogs never grow their hair again.

Diagnosis is usually made by classic presence of pigmented "bald-spot" and the record of recurrence. The diagnosis can also be verified with the skin biopsy in case more confirmation you desire. Here’s a short video for you.

Causes Of The Flank Alopecia In Canines

You will find no identified causes of the seasonal flank alopecia. Seasonal variations in prolactin and melatonin occur in canines and some other mammals. Insufficient exposure to sunlight to pineal gland can be accountable. The "pineal-gland" is in charge of producing melatonin that modulates the sleep habits in the seasonal cycles.

Too little of sunlight can trigger the tresses to fallout of some canines on seasonal basis. There doesn't seem to be sex predilection as well as it can be hereditary. A few breeds are a lot more susceptible for example Boxers (50 percent of all instances), Doberman pinschers, Airedales, Akitas, Scottish terriers, Labradors, Schnauzers, and Bulldogs.

This condition, on the other hand, is more prevalent in places in which have the dark winters. The indoor canines are most vulnerable because of the deficiency of being outdoors throughout daylight hours.

Symptoms Of The Flank Alopecia In Canines

  • Earlier "bilateral-symmetrical" baldness in past winter and fall months
  • Skin infection found in bald places of the canine
  • The loss of hair on the bottom of tail, ears, and nose, of the canine in most cases
  • "Dark-pigmentation" in the places of hair loss
  • "Bilateral-symmetrical" hair loss, especially in flanks as well as the backside of dog

You will find two types of the seasonal "flank-alopecia". Both of them are usually non-inflammatory that produce no scratching or itching.

Hereditary influence can be the main cause with a few cases of the seasonal "flank-alopecia", although it hasn't been verified.

Sunlight amounts can play a role at the beginning of seasonal flank alopecia, with house-bound or indoor dogs more prone to be affected by this condition, because of their deficiency of daily exposure to the sunshine.

Diagnosis Of The Flank Alopecia In Canines

Most canines show symptoms between November & March every year. If the dog is displaying symptoms, then he needs to be inspected by a vet. Clinical symptoms will also be noted, as well as pigmented "bald-spots" will be determined. The breed of your dog will be taken into consideration, and also the season.

Skin biopsies can be required, which can detect epidermal thickness, comedones (the canine acne), follicular atrophy (the white bumps), and also hyper-pigmentation of skin.

Some other disorders and diseases such as bacteria, mites, parasites, thyroid disease, and Cushing's disease will be eliminated by proper testing. The standard age of diagnosis of the seasonal flank alopecia is approximately 4 years.

Is There Treatment?



Excessive exposure to the sunlight throughout months of Sept through March significantly lessened the occurrence of the flank alopecia. Discover a means of offering a chance for your canine to spend additional time outdoors, particularly in the winter and fall. This will significantly improve his possibilities of not getting seasonal "flank-alopecia".

Melatonin Therapy


Not to mention, melatonin is actually a hormone which regulates body of dog’s day-to-day rhythm. This can assist to re-grow and thicken the fur of dog. Melatonin injections or oral supplements may be recommended or administered. Melatonin implants below the skin usually are accessible in a few countries.

However, "melatonin" oral supplements will be effective around 50% of times. Follow the advice of your veterinarian on the appropriate frequency and dosage. Usually, melatonin will likely be provided daily for 2 or 3 months until the complete growth of hair takes place. Restarting melatonin annually 4 to 6 weeks before expected onset of the hair loss can stop recurrence the next year.

Recovery Of The Flank Alopecia In Canines

There is an excellent, but unstable prognosis with the most dogs about the building back of the hair. But, some canines bypass a season of hair re-growth and some ever may not restore all their hair.

Oftentimes the hair can even re-grow in different texture and color. Seasonal "flank-alopecia" is actually a cosmetic condition and doesn't affect the wellness or standard of living of the canine.


To conclude, there is a cure for seasonal flank alopecia in dogs. The above-mentioned tips and ideas will help you get the best help when you need. You just have to keep them in mind and take care of your buddy.

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Anna Sakila

Hi, I’m Anna Sakila and I love to give my friend the best of everything. I started this blog so I can also share my experiences with you. Take a tour through my site to see helpful stories and useful information on the best ways to care for your lovely dog.

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