Some standard content:
ICS13.100
National Occupational Health Standard of the People's Republic of China GBZ55—2002
Diagnostic Criteria of Occupational Acne
Diagnostic Criteria of Occupational AcnePublished on April 8, 2002
Implemented on June 1, 2002
Ministry of Health of the People's Republic of China
Article 5.1 of this standard is recommended, and the rest are mandatory. This standard is formulated in accordance with the "Law of the People's Republic of China on the Prevention and Control of Occupational Diseases". From the date of implementation of this standard, if there is any inconsistency between the original standard GB16375-1996 and this standard, this standard shall prevail. Occupational acne is a common occupational skin disease, and its incidence rate is second only to occupational contact dermatitis. This standard is formulated to protect the health of occupational contacts and effectively prevent and treat occupational skin diseases. Appendix A of this standard is an informative appendix, and Appendix B is a normative appendix. This standard is proposed and managed by the Ministry of Health of the People's Republic of China. This standard was drafted by the Occupational Health and Poison Control Institute of the Chinese Center for Disease Control and Prevention, and Shanghai Dermatology and Venereology Hospital, Shanghai Second Medical University, Shandong Provincial Institute of Labor Hygiene and Occupational Disease Prevention and Control, and Changchun Second Hospital. This standard is interpreted by the Ministry of Health of the People's Republic of China..com Occupational Acne Diagnosis Standard
GBZ55-2002
Occupational acne refers to chronic inflammatory damage to the skin hair follicles and sebaceous glands caused by contact with mineral oils or certain halogenated hydrocarbons during production labor. Oil acne caused by coal tar, shale oil, natural petroleum and its high-boiling point fractionation products and asphalt are called oil acne; chloracne caused by certain halogenated aromatic hydrocarbons, polychlorinated phenols and polyvinyl chloride pyrolysis products are called chloracne 1 Scope
This standard specifies the diagnostic criteria and treatment principles for occupational acne. This standard applies to the diagnosis and treatment of occupational acne. 2 Normative References
The clauses in the following documents become the clauses of this standard through reference in this standard. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties reaching an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard.
3 Diagnostic principles
Diagnostic criteria for occupational skin diseases (general principles) Based on a clear history of occupational exposure, unique clinical manifestations and sites of disease onset; refer to length of service, age of onset, work environment survey and epidemiological survey data; combined with dynamic observation of the disease, comprehensive analysis is conducted to exclude common acne and non-occupational exogenous acne before diagnosis.
4 Diagnostic criteria
4.1 Oily acne
Most follicular lesions occur at the contact site, manifested as dilated pores, keratinization of the follicle mouth, hair breakage and blackhead comedones. There are often inflammatory papules, folliculitis, nodules and cysts. Larger blackhead comedones often leave depressed scars after squeezing out blackhead lipid emboli. Skin lesions usually have no subjective symptoms or may cause mild itching or tingling. They often occur on the eyelids, auricles, and extensor sides of the limbs, especially those that rub against oil-soaked clothes, and are not limited to the face, neck, chest, back, shoulders, and other common acne sites. 4.2 Chloracne
Flakes of follicular lesions occur at the contact sites, with blackheads as the main manifestation. At the beginning of the disease, dense black spots as big as a needle tip often appear below the eyes and on the face. Over time, larger blackheads appear around the auricles, abdomen, buttocks, and scrotum, accompanied by keratinization of the follicles, with occasional miliary lesions, and inflammatory papules are less common. There are often straw-yellow cysts around the auricles and scrotum. 5 Treatment principles
5.1 Treatment principles
Refer to the treatment principles of common acne and treat symptomatically. Pay attention to the timely removal of pathogens remaining on the skin. For larger cysts, surgical removal may be considered.
5.2 Other treatments
Occupational acne generally does not affect the ability to work. With enhanced protection, the original work can be continued. For those with multiple folliculitis, multiple cysts and aggregated acne that are ineffective, they can consider changing jobs to avoid contact with pathogens. ..com6
Instructions for the correct use of this standard
See Appendix A (Informative Appendix) and Appendix B (Normative Appendix). Appendix A
(Informative Appendix)
Instructions for the correct use of this standard
A.1 This standard is only applicable to the diagnosis and treatment of oily acne and chloracne caused by occupational reasons. Other acne with a clear causal relationship with occupational exposure can be diagnosed and treated in accordance with the principles stipulated in GBZ18 and with reference to this standard. A.2 Occupational acne is a chronic skin lesion. The incubation period of the disease depends on comprehensive factors such as the nature, dose, duration of action and individual quality of the contact with the pathogen. Therefore, the standard only stipulates that there must be a clear and long-term occupational exposure history, but does not specify a specific period. The diagnosis can be made based on comprehensive considerations. A.3 Occupational acne is a multi-factorial disease. Acne caused by various pathogens has different clinical manifestations. For ease of understanding, it is classified into two categories: oil acne and chloracne according to the main pathogens and those with similar clinical manifestations. The two are just classifications, not fixed rash types, and should be uniformly diagnosed as occupational acne. For ease of handling, the pathogen can be indicated in brackets when necessary, such as occupational acne (caused by XX).
A.4 Before the onset of oil acne, there must be a clear and long-term occupational history of contact with tar (or crude oil), asphalt and high-boiling point fractions of mineral oil (such as diesel, engine oil and various lubricants). Before the onset of chloracne, there must be a clear and long-term occupational history of contact with polychlorinated benzenes, polychlorinated naphthalenes, polychlorinated phenols, certain brominated aromatic hydrocarbons and polyvinyl chloride pyrolysis products.
Oil acne and chloracne both occur in areas that are frequently in contact with pathogens; they can occur at any age; there can be more patients of the same type of work under the same working conditions; after a certain period of time without contact with pathogens, the condition can be alleviated or cured, but the cysts are not easy to disappear; after a certain period of time after resuming contact with pathogens, the condition can worsen or relapse. A.5 Diagnosis Occupational acne should be mainly differentiated from common acne. Common acne has its fixed predilection sites (face, neck, chest, back, shoulders) and predilection age (15 to 25 years old), while occupational acne can occur at any age and any contact site, which is of great significance in differential diagnosis. For acne that occurs in young workers at work, if the skin lesions are limited to the face, it is difficult to distinguish whether it is occupational acne or common acne; if there are skin lesions on the limbs, scrotum, etc. at the same time, it can be clearly diagnosed as occupational acne. A.6 Chloracne refers to acne caused by certain halogen compounds, mainly aromatic compounds of chlorine and bromine. Chlorine and bromine alone do not cause acne. The main compounds that cause acne are polychlorinated naphthalenes, polybrominated naphthalenes, polychlorinated biphenyls, polybrominated biphenyls, polychlorinated benzenes, polychlorinated phenols, etc. In addition to skin contact, inhalation or ingestion of certain chlorinated aromatic hydrocarbons can cause chloracne, such as the acne-like rash that appears on the skin when polychlorinated biphenyls are poisoned. In this case, the problem of systemic poisoning should be dealt with first. A.7 The general occupational prohibition certificate stipulates that patients with obvious sebum secretion or severe acne should not engage in work that contacts acne-causing substances. This is because it takes into account that the occurrence of acne is related to sebum secretion. Arranging work according to physical constitution may reduce the incidence of the disease, but it is not absolute. Therefore, it cannot be used as a basis for changing jobs for those who are already employed. ..comMain differences
Age of onset
Location of onset
Clinical manifestations
Evolution of the disease
15~25 years oldbzxZ.net
Acne vulgaris
Rarely seen in people over 30 years old
Appendix B
(Normative appendix)
Differences between occupational acne and acne vulgaris
Oil acne
Can occur at any age
Face, neck, upper chest and back , shoulders
Acne, inflammatory papules, folliculitis, pustules, nodules, cysts, blackheads are rare
Skin lesions change with age, and have no obvious relationship with contact with oils and halogen compounds
The disease can occur in any contact area, especially the friction areas of oil-soaked clothes, commonly in the face
Neck, extensor parts of limbs, abdomen, buttocks and scrotum
Enlarged pores, keratinization of hair follicles, broken hairs, inflammatory papules, blackheads, nodules, cysts. It is often complicated by wart-like acne. It can occur at any age. It can occur at any contact site, and is more common in the outer lower part of the eye, palpitations, around the auricle, chest, back, buttocks and external genitalia. Blackheads, keratinization of the hair follicles, chestnut-shaped eruptions, straw-yellow cysts, and inflammatory papules are rare. It has nothing to do with age. After a certain period of time without contact with the pathogen, the skin lesions can improve and even heal, but recurrence can occur after resuming contact
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