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 purpura.

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

*Inadequate haemostatic response. This may be caused by platelet dysfunction or deficiency, which leads to a primary or secondary thrombocytopenic purpura, or deficiencies/derangements of clotting factors.

*Inadequate haemostatic response. This may be caused by platelet dysfunction or deficiency, which leads to a primary or secondary thrombocytopenic purpura, or deficiencies/derangements of clotting factors.