Why Are Bruises Easy to Appear on the Body? What Nutrient Could Be Lacking?
When our skin is bumped, bruises may appear. The occurrence of bruises is closely related to capillaries, platelets, and coagulation factors. If there is a decrease or functional defect in these factors, it is easier to develop bruises than the average person. To alleviate bruises, one can increase their intake of vitamin C daily, which can reduce the occurrence of bruises when bumped. Common diseases associated with bruises include:
Visible bleeding points or ecchymoses of varying sizes may appear on the oral mucosa, chest, back, and underarms, or may present as streaky or scratch-like bleeding points.
Petechiae and ecchymoses can occur on the skin and mucosa of any part of the body, but are more common on the extremities.
Petechiae and ecchymoses may be present on the skin and mucosa.
Various skin lesions may be seen, with petechiae, ecchymoses, scarlet-like rash, and urticaria-like rash being common.
Deep purple ecchymoses may appear on the skin after a bruise, and more severe injuries may result in hematomas.
Mainly manifests as skin purpura. The purpura may vary in size and can fuse into patches, forming ecchymoses. Purpura is mainly limited to the limbs, especially the lower limbs and buttocks.
Many patients experience bleeding to varying degrees, which can occur throughout the body and manifest as petechiae, ecchymoses, nosebleeds, gum bleeding, excessive menstrual bleeding, and retinal hemorrhages.
(1) Extravascular factors: Weakness in the supporting structures of the blood vessels due to degeneration, atrophy, and relaxation can lead to bleeding and the formation of purpura. These factors are commonly seen in senile or malignant purpura, where even minor external pressure on capillaries and small vessels can cause rupture and bleeding, leading to purpura.
(2) Vascular factors: These refer to the damage of capillary walls, allowing blood to leak out of the vessels and form purpura. Vascular factors are the primary cause of purpura. In healthy individuals, when small vessels are injured, they immediately undergo reflexive contraction, slowing down local blood flow to promote hemostasis. However, if there is increased fragility and permeability of surrounding vessels or abnormal vasomotor function, it can easily lead to hemorrhagic purpura due to blood leakage from the vessels. The characteristic of bleeding caused by vascular factors is a positive capillary fragility test, but normal bleeding time and coagulation time. The most common type of purpura caused by vascular factors is allergic purpura.
Additionally, bacterial or viral infections, vitamin C deficiency, chemical factors, and other causes can damage the vessel walls and lead to purpura. Furthermore, there is a type of unexplained increase in vessel wall fragility, commonly seen in women. This type of purpura may disappear spontaneously without any adverse consequences and is known as simple purpura.