Knowra Dermatology Dermatology Dermatology is the branch of medicine concerned with the skin, hair, nails, and their diseases. It includes diagnosis, treatment, and prevention of disorders affecting these tissues.
Skin : The body’s largest organ, forming a protective barrier and supporting sensation, temperature regulation, and immune defense. Its layers and functions provide the foundation for understanding most dermatologic disease.
Cutaneous immunity : The network of skin cells and immune responses that detects injury and microbes and helps maintain tissue defense. Immune activity drives many inflammatory eruptions and contributes to defense against infection.
Atopic dermatitis : A chronic inflammatory skin disease marked by itch and recurrent eczematous lesions, often associated with barrier dysfunction. It is a common condition linking impaired barrier function with immune-driven inflammation.
Allergy and immunology : The medical specialty focused on allergic disease, immune dysfunction, and related conditions. It overlaps with dermatology in allergic contact dermatitis and immune-mediated skin disease.
Pruritus : An unpleasant sensation that provokes the desire to scratch, arising from skin or systemic causes. It is a frequent symptom that can disrupt sleep and mark disease severity.
Epidermis : The outermost layer of skin, made chiefly of keratinocytes and renewed through continual cell turnover. Many common skin disorders begin in this barrier-forming layer.
Inflammation : A biological response to harmful stimuli that recruits immune cells and signaling molecules to affected tissue. Inflammatory pathways underlie many rashes and shape their signs and symptoms.
Psoriasis : A chronic immune-mediated disease that produces sharply defined, scaly plaques and can also affect joints and nails. Its characteristic plaques and systemic associations illustrate chronic inflammatory care.
Rheumatology : The medical specialty concerned with inflammatory and autoimmune diseases of joints, connective tissue, and related organs. Some skin findings signal systemic autoimmune diseases managed across both specialties.
Scarring : The lasting replacement of normal tissue by fibrous connective tissue after injury or inflammation. Scars can persist after acne, surgery, burns, and other skin diseases.
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