Hair detection belongs to the business scope of enterprises in the health field. The health field includes medical treatment, health examination, disease prevention and other services and businesses. Hair detection can be used for many purposes, such as drug detection, genetic disease screening, nutritional status evaluation and so on. Testing is provided by professional medical institutions, laboratories or relevant health institutions. Hair detection in Xiantao, Hubei Province belongs to one of the business scope of enterprises in the field of health.