National Skin Centre

	Acne Vulgaris

	Benign Skin Tumours/Growths

	Birthmarks: Laser Treatment For Vascular Birthmarks

	Botulinum Toxin Injections for Wrinkles/Frown Lines

	Cafe-Au-Laits Spots

	Care Of The Skin

	Chemical Peel

	Chronic Venous Leg Ulcers

	Contact Allergy

	Diphencyprone (DCP) Treatment for Alopecia Areata

	Diaper Candidiasis

	Diseases Of The Nail

	Drug Allergy

	Eczema and Atopic Dermatitis

	Folliculitis / Furuncles (Boils) / Carbuncles

	Freckles

	Fungal Infections Of The Skin

	Guttate Hypomelanosis

	Hair Loss

	Hand Eczema

	Impetigo

	Laser For Removal Of Tattoos & Birthmarks

	Laser Skin Re-Surfacing For Wrinkles/Scars

	Laser Treatment

	Lasers For Hair Removal

	Lasers In Skin Disorders I

	Lasers In Skin Disorders II

	Melasma

	Molluscum Contagiosum

	Nickel Allergy

	Occupational Skin Disease

	Phototherapy

	Post-Inflammatory Pigmentation

	Psoriasis

	Rosacea

	Scabies

	Sclerotherapy

	Seborrhoeic Dermatitis

	Shingles

	Skin Cancers

	Skin Conditions Around The Eyes I

	Skin Conditions Around The Eyes II

	Skin Cosmetic Surgery I

	Skin Cosmetic Surgery II

	Skin Day Treatment Services in NSC

	Skin Diseases Associated With Housework

	Skin Diseases In Diabetes Mellitus

	Skin Diseases In Pregnancy

	Skin Diseases Of The Scalp I

	Skin Diseases Of The Scalp II

	Skin Disorders Caused By Cosmetics I

	Skin Disorders Caused By Cosmetics II

	Skin Disorders In The Mouth/ Lips

	Skin Disorders in Young Children I

	Skin Disorders in Young Children II - Discoid Eczema

	Skin Disorders in Young Children III

	Skin Problems In The Elderly I

	Skin Problems In The Elderly II

	Skin Signs of Internal Cancers I

	Skin Signs of Internal Cancers II

	Solar Lentigenes

	Tinea Capitis

	Urticaria

	Viral Warts

	Vitiligo

Guttate Hypomelanosis

Guttate Hypomelanosis

Idiopathic Guttate Hypomelanosis

What is idiopathic guttate hypomelanosis ?
It consists of discrete porcelain-white, patches of about 5 mm diameter, in sun-exposed areas of the skin, especially on the forearms and shins. The patches do not increase much in size. The hairs over the lesion are normal in colour.

Usually no treatment is necessary.

How does one differentiate idiopathic guttate hypomelanosis from vitiligo?
Vitiligo is usually symmetrical. The lesions in vitiligo are chalky-white and tend to have a scalloped edge. The white patches of vitiligo tend to enlarge. The hair over the lesions are also white.

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By National Skin Centre (Singapore)
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