After the capillary rupture and bleeding, there may be no obvious symptoms, but also may cause nosebleeds, petechiae and other symptoms: 1, no obvious symptoms: after trauma, the capillaries are mildly damaged, which will not cause extensive bleeding, usually within 24 hours will gradually heal, and the exuded blood will be gradually absorbed by the tissue, so it will not show obvious symptoms; 2, nosebleeds, gum bleeding: abnormal coagulation function or vitamin C When the capillary walls become more brittle due to the lack of vitamin C and the decrease of body resistance, it is easy to cause skin damage and bleeding points when subjected to external force, resulting in nosebleeds and gum bleeds; 3, petechiae: after the capillary rupture and bleeding, the brittleness and permeability of the surrounding blood vessels increase, and the blood seeps in and out of the blood vessels and cannot be absorbed by itself to form petechiae; 4, spider nevus and liver palm: impaired liver function, estrogen After the capillary rupture and bleeding, the blood accumulates in the body and enters the blood circulation, causing the arterial end branches to expand, forming spider nevus and liver palm, manifested as pink spots on both sides of the palm of both hands between the large and small fissures and the palm surface of the fingertips; 5, digestive system symptoms: If the capillary bleeding is caused by allergic purpura, it will not only show bleeding spots on the skin, but also cause digestive tract symptoms, such as nausea, vomiting, diarrhea, abdominal pain, vomiting blood, etc. It will also cause joint pain and kidney changes.