Swathi College of Pharmacy, Venkatachalam, Nellore
Autoimmune skin disorders comprise a heterogeneous group of chronic inflammatory diseases with significant morbidity and impact on quality of life. Understanding their epidemiological distribution and clinical characteristics is crucial for early diagnosis, effective management, and enhanced patient outcomes. The current study states epidemiological patterns and clinical profiles of patients with autoimmune skin disorders in a cross-sectional study setting. A hospital- based cross-sectional study was conducted among patients diagnosed with autoimmune skin disorders over a defined study period. Demographic data, disease duration, clinical presentation, comorbidities, and laboratory findings were recorded using a structured proforma. Descriptive statistical analysis was performed to assess prevalence, age and gender distribution, and common clinical features. The study included subjects across a wide age range, with a female predominance observed in most autoimmune skin conditions. Commonly encountered disorders included vitiligo, psoriasis, pemphigus vulgaris, and lupus erythematosus. The majority of subjects presented with chronic, relapsing disease patterns. Clinical severity varied considerably, highlighting the heterogeneous nature of these disorders collected by dermatology outpatient visits during the study period. Peak incidence was observed in individuals between the second and fifth decades of life. Disease onset was insidious in the majority of cases, with delayed presentation to healthcare facilities. Cutaneous manifestations were the primary presenting feature, although systemic involvement was noted in a subset of patients. Family history of autoimmune diseases was present in a notable number of patients. Environmental and lifestyle factors were identified as potential disease-modifying influences. Laboratory investigations revealed frequent autoimmune markers correlating with disease severity. Psychological stress and reduced quality of life were commonly reported among affected individuals. Treatment history showed varied therapeutic responses, reflecting disease heterogeneity. Early diagnosis was associated with better disease control and reduced complications. The study highlights the importance of multidisciplinary management in complex cases. Data emphasise the need for increased awareness and screening for associated autoimmune conditions.
SKIN
The skin is the largest organ in the body, covering its entire external surface. The skin has 3 layers—the epidermis, dermis, and hypodermis, which have different anatomical structures and functions ( Cross Section, Layers of the Skin). The skin's structure comprises an intricate network that serves as the body's initial barrier against pathogens, ultraviolet (UV) light, chemicals, and mechanical injury. This organ also regulates temperature and the amount of water released into the environment.
Skin thickness varies by body region and is influenced by the thickness of the epidermal and dermal layers. Hairless skin in the palms of the hands and soles of the feet is the thickest due to the presence of the stratum lucidum, an extra layer in the epidermis. Regions lacking this extra layer are considered thin skin. Of these regions, the back has the thickest skin because it has a thick epidermis. The skin's barrier function makes it susceptible to various inflammatory and infectious conditions. In addition, wound healing, sensory changes, and cosmesis are significant surgical concerns. Understanding the skin's anatomy and function is crucial for managing conditions across all medical fields. The skin is also one of the largest organs in humans and is formed by a layer (termed the epidermis) that enables the body to interact with the environment through physico-chemical mechanisms and sophisticated sensorial stimuli. Moreover, the epidermis protects the human body through specialised cells involved in immunity, which are distributed throughout the organ. The epidermis is comprised of the following five layers (listed in order from the innermost layer to the outermost layer): the basal or germinate layer that consists essentially of keratinocytes that are attached to the basement membrane by a structure called the hemidesmosome and the focal contact. The hemidesmosome plays an important role in autoimmune bullous skin. Next to the basal layer are the basal cells, which are cuboidal and migrate to the surface in a process termed cell differentiation. These cells allow the expression of certain types of keratins in the keratinocytes. The next layer is the stratum spinosum, which consists of five rows of polygonal flattened cells. The cytoplasm of these cells exhibits discrete basophilic staining, and in this stratum, the presence of tonofibrils is evident, and the cells are joined by structures called desmosomes. The desmosome is a molecular complex formed by desmoglein proteins (Dsg) that are involved in triggering a pathogenic immune response in blistering autoimmune diseases, such as pemphigus. The next layer is the granular stratum, the surface of which is formed by three rows of cells containing round nuclei. The keratinocyte layer is characterised by the presence of electron-dense granules composed of sulfur-rich amino acids present in the precursor molecule of filaggrin. The next layer is the stratum lucidum, which is comprised of two rows of flattened cells that do not contain nuclei and have poorly defined shapes. The cells produce a thin eosinophilic zone containing large amounts of keratins and are found mainly in the palms and soles, which is of clinical relevance in autoinflammatory diseases, such as keratoderma palmoplantar.
Function of the skin
List of Skin Disorders
Common Skin Disorders
Infectious Skin Disorder: Impetigo, Cellulitis, Fungal infections (Tinea, Candidiasis) Viral warts, simplex and herpes zoster, Scabies, Pediculosis (lice infestation)
Inflammatory Skin Disorders
Eczema (Atopic dermatitis, Contact dermatitis), Psoriasis, Seborrheic dermatitis, Acne vulgaris, Urticaria
Pigmentary Disorder
Vitiligo, Melasma, Post-inflammatory hyperpigmentation, Alopecia (hair loss), Keloids and hypertrophic scars,
Rare Skin Disorders
Autoimmune and Vesiculobullous Disorders
Pemphigus vulgaris, Bullous pemphigoid, Dermatitis herpetiformis, Zx Epidermolysis bullosa
Genetic and Congenital Disorders
Ichthyosis, Xeroderma pigmentosum, Incontinentia pigmenti, Ehlers-Danlos syndrome, Tuberous sclerosis.
Rare Pigmentary Disorders: Albinism
Other Rare Disorders: Cutaneous lupus erythematosus, Pityriasis rubra pilaris
Hidradenitis suppurativa (can also be moderately common in some regions), Porphyrias Mastocytos
AUTOIMMUNE SKIN DISORDERS:
Autoimmune skin disorders represent a diverse group of conditions in which the immune system aberrantly targets components of the skin, leading to chronic inflammation, tissue damage, and significant morbidity. Disorders such as vitiligo, psoriasis, pemphigus vulgaris, and systemic lupus erythematosus exhibit variable prevalence across regions, influenced by genetic, environmental, and immunological factors. Epidemiological studies highlight that autoimmune skin diseases often have a higher prevalence among females and may be associated with other systemic autoimmune conditions. Clinically, these disorders present with diverse manifestations ranging from localised depigmentation and scaling to blistering and ulcerations, significantly affecting the quality of life of patients.
Understanding the epidemiological patterns and clinical presentations of autoimmune skin disorders is essential for early diagnosis and effective management. Cross-sectional studies provide valuable insights into the distribution, demographic correlations, and clinical spectrum of these disorders within specific populations, aiding in healthcare planning and targeted interventions. This study aims to analyse the epidemiological distribution and clinical characteristics of patients with autoimmune skin disorders, thereby contributing to improved understanding and management strategies within dermatology practice.
Autoimmunity
Over a hundred years ago, Paul Ehrlich wrote, “We pointed out that the organism possesses certain contrivances by means of which the immunity reaction, so easily produced by all kinds of cells, is prevented from acting against the organism’s own elements and so giving rise to autotoxins … so that one might be justified in speaking of a ‘horror autotoxicus.
Historically, Donath and Landsteiner described paroxysmal cold hemoglobinuria as the first autoimmune disease in 1904. It is a rare form of hemolytic anaemia caused by complement-dependent cold-acting autoantibodies that produce hemolysis in vivo in a temperature-dependent reaction that occurs between 18 and 20°C. Another advance in the understanding of the spectrum of autoimmune disease was made in 1962, when Milgrom and Witebsky proposed several postulates for the classification of autoimmune diseases
These efforts have fostered the development of a classification system that provides for five types of diseases as follows:
Most autoimmune skin diseases belong to the second category, as is the case for autoimmune bullous disease (pemphigus and pemphigoid), and one example of autoinflammatory skin disease is psoriasis. Differences between autoimmunity and autoinflammation are as follows: autoimmunity is a self-directed inflammation caused by aberrant dendritic cells and T and B cell behaviours that disrupt tolerance, resulting in an adaptive immune response that plays a centrarol
This study aims to analyse the epidemiological distribution of clinical characteristics of patients with autoimmune skin disorders, thereby contributing to the fact that autoimmune skin disorders represent a diverse group of conditions in which the immune system aberrantly targets components of the skin, leading to chronic inflammation, tissue damage, and significant morbidity. Disorders such as psoriasis, pemphigus, vulgaris, and systemic lupus erythematosus exhibit variable prevalence across regions, influenced by genetic, environmental, and immunological factors. Epidemiological studies highlight that autoimmune skin diseases often have ahigher prevalenc among females and may be associated with other systemic conditions. Improved understanding and management within dermatology practice
Psoriasis: Psoriasis is a chronic autoimmune skin condition that speeds up the life cycle of skin cells, causing them to build up rapidly on the surface of the skin. This buildup results in scaly, red, inflamed skin that can be itchy or painful.
Types of psoriasis :
Common symptoms: Red patches of skin covered with thick, silvery-white scales(plaques) Dry, cracked skin that may bleed
Treatment of psoriasis
Phototherapy (light therapy)
Vitiligo
Vitiligo is a chronic condition where patches of skin lose their pigment (colour) due to the destruction or malfunction of melanocytes- the cells responsible for producing melanin. It can affect any part of the body, including the hair, eyes, and inside of the mouth. Vitiligo is not contagious or life-threatening, but it can impact a person`s self- esteem and emotional well-being
Types of vitiligo
Non-segmental (generalised) – it's most common, it's white pacthes acrossbothsides of the body(E.x, hands, knees, face)
Mental- affects only one side of the body.
Focal – a few isolated patches, doesn`t spread widely. Mucosal -affects mucous membranes only.
Common symptoms
Causes and risk`s factors
Treatments: There is no cure, but treatments aim to restore colour or even out skin tone.
Impetigo is a highly contagious bacterial skin infection, most common in young children, but it can affect people of any age. It typically causes red sores or blisters on the face ( especially around the nose and mouth) and other exposed body parts.
Causes: Staphlococcus aureus, Streptococcus pyogenes
Symptoms: The symptoms can appear 4-10 days after infection.
Treatment
Topical antibiotics
Oral antibiotics
Home care
Bullous pemphigoid
Bullous is a chronic autoimmune blistering skin disease that typically affects older adults (usually over 60). It occurs when the immune system mistakenly attacks the layers of the skin just beneath the outer layer(epidermis), leading to large, fluid- filled blisters. It's not contagious but can be long -lasting and sometimes serious if untreated.
Bottom of Form: Autoimmune reaction, the body produces antibodies against proteins in the basement membrane b/w the epidermis and dermis. Thies caues separation of skin layers, leading to blister formation.
Symptoms:
Treatment
Topical therapy: High-potency corticosteroids (e.g., clobetasol)
Systemic therapy: Oral corticosteroids (e.g., prednisone) Steroid-sparing immunosuppressants (Azathioprine, methotrexate)
RESULTS & DISCUSSION
CONCLUSION & SUMMARY
The survey data provides valuable insights into the level of awareness and knowledge regarding skin and related health aspects among respondents.
1. Demographic Awareness: A majority of the respondents were from Andhra Pradesh (95.1%), followed by Tamil Nadu (2.9%) and Telangana (1%), indicating that the data predominantly represents individuals from Andhra Pradesh.
2. Awareness About Affected Body Parts: Most respondents (95%) were aware that the skin can be affected by autoimmune or dermatological conditions. A smaller proportion identified the intestine (3%) and lungs (2%), while none recognised bones as being commonly affected.
3. Departmental Awareness: A large majority (93.1%) associated skin-related issues correctly with the Dermatology department. Minimal awareness was seen in Orthopaedics (3.9%) and Haematology (2.9%), showing that most respondents have an accurate understanding of the relevant medical speciality.
4. General Awareness on Skin Health: About 87.3% of respondents were informed about skin- related health aspects, while 12.7% were not, indicating a generally high level of awareness in the population studied.
5. Skin Type and Condition Knowledge: Respondents showed moderate awareness of their skin types: Normal skin – 38.2%, Oily skin – 22.5%, Dry skin – 17.6%
However, 33% either had this information from a year ago or were uncertain, suggesting limited recent assessment of skin condition.
6. Knowledge of Skin Layers: When asked about the number of skin layers, 59.4% correctly identified 3 layers, though 14.9% incorrectly selected 7 layers. A similar pattern was seen in another question where 46.5% selected 7 layers. This shows some confusion regarding basic anatomical knowledge of the skin.
7. Awareness of Skin Functions: A vast majority (84.2%) correctly identified “All of the above” as the functions of the skin, which include protection, sensation, and excretion. This indicates good conceptual understanding of skin functions.
8. Awareness of Skin-Related Diseases: About 69% were aware of skin-related diseases, and 73.5% knew about preventive measures. This reflects a generally informed population with positive awareness levels toward skin health.
9. Preventive PracticesAn overwhelming majority (91.1%) acknowledged that cleaning the skin, keeping clothes clean, and avoiding irritants are all important for maintaining healthy skin. This demonstrates strong awareness of hygienic practices.
10. Frequency of Skin Checkups: Only a small portion of respondents had recent checkups: 15% had one three months ago,19% six months ago, and 33% one year ago.
Another 33% were unsure, suggesting that routine skin checkups are not a consistent habit among many.
11. Awareness of Causes: When asked about causes of skin disorders, 70.6% correctly chose “All of the above” (viruses, bacteria, fungi, and genetic factors), reflecting a comprehensive understanding of possible etiological agents
The study reveals that most respondents possess a good level of awareness about skin health, its structure, functions, and preventive measures. The majority could correctly identify dermatology as the relevant field and understand common causes and hygiene practices related to skin care.
However, there remain gaps in specific knowledge areas, such as:
Accurate identification of skin layers, Regular self-assessment and dermatological checkups, and Broader awareness among regions outside Andhra Pradesh.
To improve community health literacy, awareness campaigns, health education programs, and
periodic dermatological screenings are recommended, especially to reinforce accurate anatomical knowledge and the importance of routine skin health monitoring.
REFERENCES
G. Mamatha, J. Praveen Kumar, K. Prudhvi, K. Nithesh, K. Lavanya Lahari, Kota Venkata Swapna, Epidemiological and Clinical Insights into Autoimmune Skin Disorders: A Cross-Sectional Study, Int. J. of Pharm. Sci., 2026, Vol 4, Issue 3, 2456-2467. https://doi.org/10.5281/zenodo.19142975
10.5281/zenodo.19142975
