Sarcoptidae is a family of mites that are parasitic to mammals and birds. The most well-known member of this family is Sarcoptes scabiei, the mite responsible for causing scabies in humans. These mites burrow into the skin and lay their eggs, causing an intensely itchy rash. Other members of this family can also cause similar skin reactions in various animals.

"Sarcoptes scabiei" is a medical term that refers to a species of mite known as the human itch mite or simply scabies mite. This tiny arthropod burrows into the upper layer of human skin, where it lives and lays its eggs, causing an intensely itchy skin condition called scabies. The female mite measures about 0.3-0.5 mm in length and has eight legs. It is barely visible to the naked eye.

The mite's burrowing and feeding activities trigger an immune response in the host, leading to a characteristic rash and intense itching, particularly at night. The rash typically appears as small red bumps or blisters and can occur anywhere on the body, but is most commonly found in skin folds such as the wrists, elbows, armpits, waistline, and buttocks.

Scabies is highly contagious and can spread rapidly through close physical contact with an infected person, shared bedding or towels, or prolonged skin-to-skin contact. It is important to seek medical treatment promptly if scabies is suspected, as the condition can cause significant discomfort and lead to secondary bacterial infections if left untreated. Treatment typically involves topical medications that kill the mites and their eggs, as well as thorough cleaning of bedding, clothing, and other items that may have come into contact with the infected person.