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In me desk go up, the people that countrywide each district often comes from on accumulation sends a letter, in having a letter, say, "We marry one year, raise left a fat child, very glad, but longer on the child's face " birthmark " , felt to a knot is added in the heart, it how to know to run ability is good to do not know to run ability? " actually, "Birthmark " it is a common name only, will distinguish from medical angle, alleged " birthmark " the disease that can have face of 2 kinds of skins roughly, one kind is the pigment mole on the skin, also call spot mole or black mole; Another kind is a kind of hemangioma or hemal deformation. Both is having the ill reason of widely different to pledge, reason this does not answer confuse sth with sth else, want to divide a special subject to undertake narrative.

Let us be mentioned from pigment mole first. Pigment mole is what form by the mole cell place that contains melanin is common at skin surface, shape size has different benign tumor each. Pigment but from brown, Brown wait to black different, great majority is bit of shape small mole, some is big appear at the body each place, can reach fearsome form. Some pigment mole are bright and clean without wool, some is long have black hair. Every normal human body can find 15 ～ 20 small mole, this kind of black mole is belonged to for the most part benign, also need not treat, need not worry unnecessarily. But few number can happen however evil change, and make malign melanin tumour. But occurence rate is low-down, have the of 1/1000000 possibility of the crowd only.

Good hair of pigment mole greater part at place of face, neck, low-necked, some is in infantile period appears, some just is detected when the child is grown. Most pigment mole grows slow, or do not produce any change for years continuously, but once exist, very few meeting disappears automatically. Go up when child body, when the black spot mole that larger area discovers on the face especially, notice with respect to what can cause pa Mom and search cure to ask medicine.

How to distinguish pigment mole
From the point of cytology classification, pigment mole can be divided to be not cellular sex spot mole is mixed mole of cellular sex spot two kinds big.

1, mole of spot of blame cell sex:
Mole of spot of blame cell sex can divide 2 kinds again, one kind calls fleck, spot of another kind of renown pigment. Fleck this noun, everybody is familiar with very certainly, it is a kind of cinnamon, petty macula, good hair at facial with the body other expose place, often insolate with sun's rays about. Those who have some of young girl is facial when Chun Xia season comes, fleck is very apparent, after cool autumn days major subsidise or not apparent, this often brings trouble to them. Old people face go up or the senile plaque that brachial ministry appears also is belonged to this kind. Fleck is in cutaneous skin base layer organizes coloured element only ad cool-headed, did not see cell having mole.

Pigment spot is to point to it is than fleck big, the spot of black of skin surface layer that becomes flake or large area piece. Some are discovered when the child is born, some is growing the ability in serious offence Cheng to deepen discovery. Pigment spot also is to be in merely element of coloured of skin surface layer is ad cool-headed, yan He is evil change problem.