What is signified by Genghis Khan being born with a blood clot in his hand?

Question

Genghis Khan (born Temüjin), is reputed to have been born with a blood clot in his right hand.

Then Yisügei-ba’atur plundered Temüjin-üge, Qoribuga, and other Tatars. On his return, Lady Hö’elün was pregnant. They were at Deli’ün-boldaq on the Onon when Chinggis Qahan was born. At the time of his birth, he held in his right hand a clot of blood as big as a knucklebone. Born at the time of the capture of the Tatar Temüjin-üge, they thought to name him Temüjin.
_{The Secret History of the Mongols, trans. Urgunge Onon, page 57}

I've seen vague statements of this being an auspicious sign for his birth, others claiming it to be a sign of leadership, and others taking it for a sign of bloodlust. The latter explanation I seem to see least commonly, and looks a bit like a westernized misunderstanding at first blush, but it does seem to be the interpretation taken later in The Secret History of the Mongols:

Accidentally issuing from my hot [womb],
this one was born holding a black clot of blood in his hand.
Like the qasar dog gnawing on its own afterbirth,
like a panther attacking on a rocky mountain,
like a lion unable to control its anger,
_{The Secret History of the Mongols, trans. Urgunge Onon, page 69}

So, are there other sources to attest to the meaning of being born holding a blood clot? What was the traditional meaning of it in the Mongolian traditions of the time?

Answer 1

In shamanic cultures a child born with something special: hair, tooth, extra toe or finger or blood clot is considered as special sign. In Hungarian mythology these children are considered as táltos. They are born leaders mostly in a spiritual sense. Also some children born with a blood clot or placenta covering a part of their body has a special meaning. The right hand being involved is usually a sign of leadership. (When the head is covered it means that either the child can communicate outside the our physical world or means great intellect.)