<prompt> A newborn baby presented with profuse bleeding from the umbilical stump after bih. Rest of the examination and PT, APTT are within normal limits. Most of probable diagnosis is -Factor X deficiencyGlanzmann thrombastheniaVon willebrand diseaseBernad soulier disease  <response>: TEXT BOOK OF PATHOLOGY HARSHMOHAN 6TH EDITION PG NO 334 DEFECTIVE PLATELET AGGREGATION . In thrombasthenia Glanzmanns disease, there is failure of primary platelet aggregation with ADP or collagen due to inherited deficiency of two of platelet membrane glycoproteins. 