Bleeding into the skin takes the form of purpura or petechiae.
Petechiae occur over buboes or on the abdomen, but they are not very common, except in fatal cases, when they appear shortly before death.
The serous membranes show petechiae and haemorrhages.
Bruising, purpura and petechiae have also been reported.
Purpura, a purplish or reddish-brown rash or discoloration of the skin, and petechiae, small round pinpoint hemorrhages, are both caused by the leakage of blood from tiny capillaries under the skin.