Regional common disease

Scalp:

• Disease of hair
• Infective eczema
• Pediculosis
• Pityriasis capitis
• Psoriasis
• Seborrheic dermatitis

Face

• Acne vulgaris
• Atopic dermatitis
• Cholasma
• Contact dermatitis and eczema
• Dermal leishmaniasis
• Herpes simplex and zoster
• Impetigo
• Lupus erythematosis
• Lupus vulgaris
• Rosacea
• Seborrheic dermatitis
• Sycosis
• Vitiligo

Nose

• Chloasma
• Dermal leishmaniasis
• Lupus vulgaris
• Rhinoscleroma
• Rosacea

Ear

• Infective eczema
• Leprosy
• Seborrheic dermatits

Neck 

• Atopic eczema
• Contact dermatits
• Lichen simplex chronicus
• Skin tags
• Warts

Back

• Contact dermatitis
• Neurodermatits
• Sycosis nuchae

Front

• Actinomycosis
• Contact dermatits
• Pityriasis versicolor
• Pyoderma
• Scrifuloderma

Lips

• Angular stomatits
• Cheilitis
• Cheilitis glandularis
• Contact dermatitis
• Deficiency diseases
• Lichen planus
• Lupus erythromatosus
• Syphilis

Mouth

• Deficiency diseases
• Epithelioma
• Lichen planus
• Pemphigus
• Stomatitis
• Syphilis
• Tuberculosis

Chest

• Acne
• Dermatits
• Herpes zoster
• Pediculosis
• Pityriasis rosacea
• Pityriasis versicolor
• Seborrheic dermatitis

Back

• Acne vulgaris (Upper part)
• Dermatitis herpetiformis (scapular region)
• Herpes zoster
• Permphigus
• Pityriasis rosacea (along the ribs)
• Pityriasis vesicolor
• Psoriasis
• Seborrheic dermatits (interscapular region)

Armpits

• Contact dermatitis
• Flexural Psoriasis
• Fox-Fordyce's disease
• Hiradenitis suppurativa
• Infective eczema
• Seborrheic dermatits
• Tinea
• Trichomycosis axillaries

Abdomen

• Herpes zoster
• Lichen planus
• Pediculosis pubis
• Pemhigus
• Pityriasis versicolor
• Tinea

Groins

• Chancroidal pulp
• Flexural psoriasis
• Infective eczema
• Lymphogranuloma inguinale
• Moniliasis
• Scrofuloderma
• Tinea cruris

Anal Region

• Condylomata acuminatum
• Condylomata lata
• Contact eczema
• Fissure in ano
• Neurodermatits
• Pruritus ani

Genitals

• Chancre
• Chancroid
• Contact dermatits
• Epithelioma
• Granuloma inguinale
• Herpes progenitalis
• Leukoplakis
• Lichen planus
• Lichen sclerosis er atrophicus
• Neurodermatits
• Peiculosis
• Phagedaena
• Scabies
• Secondary syphilis

Arms

• Herpes zoster
• Tinea versicolor

Forearms

• Dermatits derpetiformis
• Discoid dermatits
• Erythema multiforme
• Lichen planus
• Psoriasis
• Tinea circinata

Elbows 

• Atopic dermatits (Front)
• Dermala Leishmaniasis
• Lupus Vulgaris
• Psoriasis (back)

Hands

• Chilblanes
• Contact eczema
• Drug allergy
• Dyshidrosis (palms)
• Infective dermatits
• Keratoderma
• Leprosy
• Nummular eczema
• Psorias
• Pustular bacteroids
• Raynaud's disease
• Syphilis
• Tinea
• Trade Eruptions
• Tuberculosis
• Verrucosis
• Warts.

Thighs

• Contact dermatits
• Folliculitis
• Tinea

Knees

• Atopic dermatits (Back)
• Lupus vulgaris
• Psoriasis (front)

Legs

• Bazin's dosease
• Doscoid dermatits
• Erythema nodosum
• Folliculitis
• Henoch Schonlein Purpura
• Lichen Planus
• Neurodermatits
• Psoriasis

Feet

• Actonomycocsis madurae
• Bacteroids
• Buerger's disease
• Chilblains
• Contact dermatits
• Discoid dermatits
• Dyshidrosis
• Keratoderma
• Leprosy
• Neurodermatits
• Post traumatic infective eczema
• Raynaud's disease
• Tinea
• Tuberculosis cutis verrucosus
• Varicose ulcers
• Warts.