大部分的胎记不是血管瘤就是色素痣。通常无害，有许多在孩童时期会自动褪去，褪不掉的有时可用雷射手术或磨蚀来除去。

Most birthmarks are either hemangiomas or moles. They are usually harmless and many fade in childhood; those that do not can sometimes be removed by laser surgery or abrasion.

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有磨蚀作用的材料不适合擦浴缸。

An abrasive material is unsuitable for cleaning baths.

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通常无害，有许多在孩童时期会自动褪去，褪不掉的有时可用雷射手术或磨蚀来除去。

They are usually harmless and many fade in childhood; those that do not can sometimes be removed by laser surgery or abrasion.

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