Changes

==Introduction==

==Introduction==

Haemorrhagic diseases can be categorised by two different causal mechanisms:

Haemorrhagic diseases can be categorised by two different causal mechanisms:

*Increased vessel fragility which leads to a non-thrombocytopenic [[Haemorrhage_-_Pathology#Purpura|purpura]].

*Increased vessel fragility which leads to a non-thrombocytopenic [[Haemorrhage#Purpura|purpura]].

*Inadequate haemostatic response. This may be caused by [[Platelet Abnormalities|platelet dysfunction or deficiency]], which leads to a primary or secondary thrombocytopenic purpura, or [[Coagulation Factor Deficiency|deficiencies/derangements of clotting factors]].

*Inadequate haemostatic response. This may be caused by [[Platelet Abnormalities|platelet dysfunction or deficiency]], which leads to a primary or secondary thrombocytopenic purpura, or [[Coagulation Factor Deficiency|deficiencies/derangements of clotting factors]].