Disorders of pigmentation present as skin that is discolored, blotchy, or darker or lighter than normal. They occur when the body produces too little (hypopigmentation) or too much (hyperpigmentation) melanin. Pigmentary disorders typically indicate an increased amount of melanin, leading to darker color of the skin, called hypermelanosis or hyperpigmentation (Box 1). Skin pigmentation disorders. Albinism, an inherited disorder, is caused by the absence of the pigment melanin, and results in no pigmentation in the skin, hair, or eyes. Albinos have an abnormal gene that restricts the production of melanin.


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If your mole was flat pigmentation disorders is now elevated raisedor if you notice bleeding, crusting, pain, or itching, this should be checked pigmentation disorders. If any of these features change, you should have your moles examined.

If you have a personal or family history of melanoma, you should have a regular examination of your moles by a dermatologist. Vascular birthmarks from blood vessels Macular stains Macular stains appear anywhere on the body as mild red marks, but they are not elevated.

They are the most common type of vascular birthmark.

Overview of Pigmentation Disorders - Dermatologic Disorders - MSD Manual Professional Edition

pigmentation disorders They can come in two forms: Because these marks are often mild and always harmless, they do not need to be treated. Hemangioma Hemangiomas are growths that are made up of many tiny blood vessels bunched together.

Some hemangiomas pigmentation disorders more serious. They are more common in females and premature babies.

Common Pigmentation Disorders

This birthmark is usually just a small mark on the face, trunk, or extremities arms and legs. However, in some children, hemangiomas can pigmentation disorders large and grow rapidly through the first pigmentation disorders of life.

There are 2 types of hemangiomas: Fortunately, most hemangiomas will go away on their own: If the hemangioma is small and not causing any problems, it can be watched to see if it gets better. Reasons to treat a hemangioma include problems with functions such as sight, eating, hearing, or defecationulceration, bleeding, or pain.

Skin Pigmentation Disorders | Hyperpigmentation | MedlinePlus

If necessary, hemangiomas can be treated in different ways, each of which carries its own risks. Corticosteroid medication can be injected or taken orally by mouth. Risks of corticosteroid medication include high blood pigmentation disorders, high blood sugar, poor growth, or cataracts.

Certain hemangiomas can also be treated with lasers to stop pigmentation disorders from growing, and heal them.

Rare risks associated with laser treatment include ulceration and scarring.

In addition, pigmentation disorders topical and oral beta blocker medication has been used to treat hemangiomas, but these medications also carry their own risks that should be carefully discussed with your dermatologist. In rare cases, a hemangioma can be removed with surgery.

Port wine stains A port wine stain appears as a flat pink, red, or purple mark on the face, trunk, arms, or pigmentation disorders, and lasts a lifetime.


Port wine stains are caused pigmentation disorders abnormal development of blood vessels capillaries. Over time, the port wine stain may become raised and thickened.

Port wine stains on eyelids pigmentation disorders thought to pose an increased risk of glaucoma. Topical isotretinoin for melasma in Thai patients: J Med Assoc Thai.