Ecchymosis

Introduction Blood spotted blood is a cut or purple blood spot with a skin surface diameter of 10 mm or more. For the skin and mucous membrane hemorrhagic patchy lesions, the nature of the same bleeding point, more suggestive of blood diseases or diseases caused by bleeding, abnormal blood clotting. It can be seen that there are bleeding spots or ecchymoses of different sizes in the oral mucosa, chest and back, and under the armpits, or bleeding spots with strip-like and scratch-like appearances. Defects and ecchymoses can occur in any part of the skin and mucous membranes, but more distal to the extremities. The skin will have dark purple freckles, a more serious bruise, and a hematoma may occur.

Cause

1. Epidemic hemorrhagic fever: It can be seen that there are bleeding spots or ecchymoses of different sizes in the oral mucosa, chest and back, underarms, or in the form of strips and scratches.

2, thrombocytopenic purpura: sputum and ecchymosis can occur in any part of the skin and mucous membranes, but more distal extremities.

3, cerebrospinal meningitis: skin, mucous membranes may have sputum, ecchymosis.

4, sepsis: visible a variety of skin damage, with sputum, ecchymosis, scarlet fever-like rash, measles-like rash common.

5, trauma: skin will appear dark purple ecchymosis after a bruise, more serious bruises, hematoma may occur.

an examination

Related inspection

Full physical examination

The examination and diagnosis of blood spots can be diagnosed by physical examination.

Differential diagnosis

(1) Extravascular factors. If the surrounding tissue of the blood vessels is weakened due to degeneration, atrophy and relaxation, it is prone to bleeding and form purpura. Extravascular factors are more common in senile or cachexia purpura. Capillaries and small blood vessels are slightly affected by a slight external force, which can cause rupture and hemorrhage.

(2) vascular factors. It refers to the purpura formed by the leakage of blood from the blood vessels to the outside of the blood vessels due to damage of the capillary wall. Purpura caused by vascular factors accounted for the first place in all purpura. After a small blood vessel injury in a normal person, the blood vessel immediately undergoes a reflex contraction, and the local blood flow is slowed down to promote hemostasis.

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