Dermatology: Hair, Nails, Skin Condition Information
Author: Disabled World (DW)
Updated/Revised Date: 1 Dec 2025
Contents: Synopsis - Introduction - Main - Publications - Subtopics
Synopsis: Dermatology is defined as the branch of medicine dealing with the hair, nails, skin and its diseases. It is a specialty with both medical and surgical aspects.
Introduction
Dermatology: Defined as the branch of medicine dealing with the hair, nails, skin and its diseases. It is a specialty with both medical and surgical aspects.
Dermatologist: Takes care of diseases and cancers of the skin, scalp, hair, and nails.
Dermatosis (plural dermatoses): Defined as any disease of the skin, and, while thousands of skin disorders have been described, only a small number account for most visits to the doctor.
Immunodermatology: A specialist who specializes in the treatment of immune mediated skin diseases such as lupus, bullous pemphigoid, pemphigus vulgaris, and other immune mediated skin disorders. Specialists in this field often run their own immunopathology labs.
Main Content
Skin Diseases
Skin conditions, also known as cutaneous conditions, are defined as any medical condition that affects the integumentary system - the organ system that encloses the human body and includes skin, hair, nails, and related muscle and glands.
Skin conditions that irritate, clog, or inflame your skin can cause symptoms such as redness, swelling, burning, and itching. Allergies, irritants, your genetic makeup, and certain diseases and immune system problems can cause dermatitis, hives, and other skin conditions. Many skin issues, such as acne, also impact your appearance. Your skin can also develop several kinds of cancers.
Research shows that many skin diseases are caused by nutrient imbalances within the human body.
Skin disease usually entails specialized diagnostic processes linked to skin conditions, treatments, and preventions of various skin diseases, and may involve treatments such as injected, externally applied, and internal medications, a variety of dermatologic surgical procedures, or cosmetic procedures like chemical peels, micro-dermabrasion, and sclerotherapy for conditions such as varicose veins.
List of Hair, Nails, and Skin Diseases
See our full list of skin diseases and conditions, or find out other interesting facts regarding human skin.
- Acne
- Grover's Disease
- Pityriasis Lichenoides
- Acanthosis Nigricans
- Hair Loss - Alopecia Areata
- Pityriasis Rosea
- Acrochordons
- Hair Loss - Androgenic Alopecia
- Pityriasis Rubra Pilaris
- Actinic Keratosis
- Hair Loss - Telogen Effluvium
- Plantar Warts
- Age Spots
- Halo Nevus
- Poison Ivy
- Allergic Contact Dermatitis
- Hand Dermatitis
- Poison Oak
- Anal Warts
- Heat Rash
- Pompholyx
- Angioma
- Herpes Simplex
- Pre-cancers of the Skin
- Aphthous Ulcers
- Herpes Zoster (See Shingles)
- Pruritus Ani
- Athlete's Foot
- Hidradenitis Suppurativa
- Pseudofolliculitis Barbae
- Atopic Dermatitis
- Hives
- Psoriasis
- Atypical Moles
- Hyperhidrosis
- Razor Bumps
- Barnacles of Aging
- Ichthyosis
- Rhus Allergy
- Basal Cell Carcinoma
- Impetigo
- Rhyniophyma
- Bateman's Purpura
- Ring Worm - Body
- Berloque Dermatitis
- Irritant vs. Allergic Dermatitis
- Ring Worm - Scalp
- Boils
- Jock Itch
- Rosacea
- Bruising Back of Arms
- Keloids
- Scabies
- Bullous Pemphigoid
- Keratoacanthoma
- Scar, Abnormal
- Candida
- Keratosis Pilaris
- Schamberg's Disease
- Carbuncles and Furuncles
- Lentigines (Sun Spots)
- Scleroderma, Localized
- Cherry Angioma
- Lichen Planus
- Sebaceous Hyperplasia
- Chiggers
- Lichen Planus Like Keratosis
- Seborrheic Dermatitis
- Chondrodermatitis Helicis
- Lichen Simplex Chronicus
- Seborrheic Keratosis
- Clark's Nevus
- Lichen Sclerosus
- Senile Angioma
- Cold Sores
- Lichen Striatus
- Shingles
- Condylomata
- Lupus of the Skin
- Skin Aging
- Cysts
- Lyme Disease
- Skin Tags
- Dandruff
- Lymphomatoid Papulosis
- Solar Keratosis
- Mask of Pregnancy
- Squamous Cell Carcinoma
- Darier's Disease
- Melanoma
- Stasis Dermatitis
- Dermatofibroma
- Melasma
- Sunburn
- Diaper Dermatitis
- Miliaria
- Sun Damage
- Discoid Lupus Erythematosus
- Moles
- Sun Spots or Liver Spots
- Dry Skin
- Molluscum Contagiosum
- Sweating, Excessive
- Dyshidrotic Dermatitis
- Mycosis Fungoides
- Telogen Effluvium
- Eczema, Atopic
- Myxoid Cysts
- Tinea Capitis
- Eczema, Dyshidrotic
- Nail Splitting, Brittle
- Tinea Corporis
- Eczema, Hands
- Nail Fungus
- Tinea Cruris
- Eczema, Localized
- Necrobiosis Lipoidica Diabeticorum
- Tinea Pedis
- Eczema, Nummular
- Nickel Allergy
- Tinea Versicolor
- Erythema Multiforme
- Nummular Dermatitis
- Urticaria
- Erythema Nodosum
- Onychomycosis
- Urticaria Pigmentosa
- Folliculitis
- Onychoschizia
- Vitiligo
- Folliculitis Keloidalis Nuchae
- Perioral Dermatitis
- Warts
- Fordyce's Condition
- Pfiesteria
- Xanthomas
- Granuloma Annulare
- Pimples
- Xerosis (Dry Skin)
- Pityriasis Alba
- Yeast Infection, Skin
Human Skin Facts
- The skin renews itself every 28 days.
- Skin accounts for about 15% of your body weight.
- Changes in your skin can sometimes signal changes in your overall health.
- Dead skin comprises about a billion tons of dust in the earth's atmosphere.
- Your skin is its thickest on your feet (1.4 mm) and thinnest on your eyelids (0.2 mm).
- Your skin constantly sheds dead cells, about 30,000 to 40,000 cells every minute! That's nearly 9 lbs. per year!
- The average adult has approximately 21 square feet (1.95 square meters) of skin, which weighs 9 lbs and contains more than 11 miles (17.7 kilometers) of blood vessels.
- The average person has about 300 million skin cells. A single square inch of skin has about 19 million cells and up to 300 sweat glands.
Other facts regarding skin, as well as a fascinating list of unusual facts and trivia regarding other parts of the human body, can be found on our web page at Human Body Facts.
Curated and edited by Ian C. Langtree, Founder & Editor-in-Chief, Disabled World. This section is maintained by the Disabled World editorial team.
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