What is the reason for the purple and black children?

Children glans purple black consideration and pigmentation, poor blood circulation, trauma and other reasons.

1, pigmentation

Some children born glans skin was purple black, this situation is generally considered and pigmentation, as long as there are no other symptoms, generally considered physiological phenomenon.

2, poor blood circulation

skin or tissue poor blood circulation may lead to local blood stasis and venous blood flow slow, and then the above performance.

3, trauma

When the glans is injured, it may lead to local bleeding, due to blood stasis in the subcutaneous, so it can make the skin color change.