Subcutaneous hemorrhages are what we call purpura. The most important thing in treating purpura is to find the cause of the purpura. Common causes include vascular factors. Genetic factors are very common. Secondly, the elderly are also prone to purpura, followed by platelet factors. 1. Vascular factors Bleeding of the skin and mucous membranes caused by congenital or acquired defects in the blood vessel walls. For example, hereditary hemorrhagic telangiectasia, due to increased local fragility of blood vessels, often causes repeated bleeding in the same area; Henoch-Schonlein purpura is a capillary allergic disease, due to the deposition of antigen-antibody complexes on the blood vessel walls, causing capillary dilation and increased permeability, leading to purpura or bleeding; the elderly are prone to senile purpura due to loose tissues and increased fragility of blood vessel walls. 2. Platelet factors Platelets play an important and complex role in hemostasis. When the number or quality of platelets is abnormal, it often leads to bleeding of the skin and mucous membranes. In severe cases, there may be internal bleeding, such as bleeding in the digestive tract, urinary tract, respiratory tract, uterus, and even brain. 3. Coagulation and anticoagulation factors Lack of coagulation factors or excess of anticoagulation factors in the blood can also cause large bruises on the skin, but deep hematomas or joint bleeding are generally more common. Frequent subcutaneous bleeding often indicates a bleeding disease. Patients should go to the hospital in time to further find out the cause and receive treatment accordingly. Subcutaneous bleeding can also occur during diving. Some divers inhale more nitrogen due to high pressure when working in deep water. The nitrogen liquefies in the blood and the nitrogen content in the human body increases. When a diver ascends, the nitrogen he inhales vaporizes instantly due to his rapid ascent, causing excessive pressure on the inner walls of his capillaries, bursting the blood vessels and causing internal bleeding. This was often the case with early diving accidents. |
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