Hairloss in a dog?

My neighbors dog, completely lost all its hair in its hindquarters area, starting from its belly to everything but its tail is completely bald now.

She is a 3 year old standard poodle and golden retriever mix. What could be the reason for her sudden hairloss?

Hairloss in a dog?

UNDERSTANDING SEBACEOUS ADENITIS

Sebaceous adenitis (SA) is a skin disease appearing most frequently in young adult dogs. For reasons currently unknown, sebaceous glands become inflamed and may eventually be destroyed leading to progressive loss of hair.

SA has been diagnosed in the Akita, Collie, Dalmatian, Dachshund, German Shepherd, Golden Retriever, Irish Setter, Lhasa Apso, Maltese, Miniature Pinscher, Old English Sheepdog, Poodle (Toy, Miniature and Stan dard), Samoyed, Springer Spaniel, St. Bernard, Vizsla, Weimaraner, as well as mixed breeds.

WHAT DOES SA LOOK LIKE?

Describing the clinical appearance of SA is difficult. First, because the disease can look different in different breeds and second, be cause the disease can vary from so severe that owners legitimately consider euthanasia as an option to so mild that no clinical lesions are present, and diagnosis requires microscopic examination of a biopsy sample. In spite of the wide range of lesions that make up sebaceous adenitis, the lesions are all associated with excess dandruff (scaling) and/or hair loss.

In the Standard Poodle, the scaling is often silvery and tightly adherent to tufts of existing hair shafts. In severely affected animals, the hair loss and scale can be severe, is often accompanied by a musty odor, and secondary skin infections may occur.

Hormonal disorders: sex hormone imbalance; underactive thyroid gland (hypothyroidism); overactive adrenal gland (hyperadrenocorticism or Cushing's syndrome) .

Parasitic and fungal conditions: Demodectic mange caused by infestation with Demodex mites ; ringworm .

Environmental: pressure sores; elbow calluses; burns; reactions at the site of an injection; clipping of the coat (in spitz breeds).

Inherited conditions: pattern baldness in Dachshunds; colour-dilution alopecia in breeds selectively bred for unusual coat colour; sebaceous adenitis in Standard Poodles; zinc-responsive dermatosis in Nordic breeds.

Behavioural: persistent licking of an area, often caused by boredom or stress, resulting in lick dermatitis (lick granuloma or acral dermatitis).

Hairloss in a dog?

allergies to her food or fleas ... they need to work with a vet to find the source and calm her immune system ...