Scabies scaly occurs on the entire surface of the body in birds, causing feather loss, and is caused by the mite Epidermoptes bilobatus Rivolta, 1876.

Scabies scaly is a contagious skin disease that is characterized by the formation of scabs, and itching of the skin and alopecia, is caused by several species of mites that nest or live in the skin of the birds.

Six of the 13 families of Analgoidea, the mites, live in wing feathers and do not seriously harm their host, whereas all members of the Epidermoptidae family are parasites of the bird’s skin, often causing serious diseases. Epidermoptes bilobatus, the agent of “chicken scabies,” infests the nape, throat, and breast regions of the chicken’s skin. A severe infestation kills the host (Dubinin 1953); they inhabit the follicles of developing feathers or the subcutaneous tissues of birds.

In general, the infestations clinics of ectoparasites generated by the fall of the pens, in addition to producing restlessness, under excessive and furious of the feathers that come to be in poor condition (broken, rough or dirty) and torn (San Martín, 2005). Mites living inside and outside the skin, feathers, hair follicles, the nasal passages, trachea, and air sacs (Thul, 1985).

Several skin conditions, such as dermatitis, welts, blisters, and nodules, can be mistaken for scabies and should be considered in the differential diagnosis, including those related to allergic reactions caused by other types of mites, bites from various arthropods, and fungal infections.

Scabies mites are mostly weakly sclerotized, move slowly, are very small (100–900 μm), and live permanently on their hosts.

Scaly skin mite (Epidermoptes bilobatus) is rare and causes scabies avian.

It buries itself in the skin that causes inflammation and itching. The skin is thickened with crusty brownish-yellow, which can become infected with a fungal infection.

Due to its living conditions, it is not a particularly harmful parasite, as it barely affects the skin tissue; however, the debris it produces can be irritating to the skin, as it consists of accumulated parasite excrement and other waste; in such cases, symptoms include itching, irritability, and feather loss due to agitation, among others.