Blood does not clot (become hardened) easily under pressure from the broken and leaking vessel.  Constant bleeding is annoying and frightening (Fig.4 arrow, liver-like clot outside the socket of a wisdom tooth).  It needs immediate attention.  1: the first molar.  In fact, this case is different from the one in Fig.1-3.  The second molar has been extracted.

Why Severe Bleeding after Extraction

Xin Wei, DDS, PhD, MS 1st edition 01/08/2015, last revision 01/09/2015