Can a physical examination detect purpura

Physical examination can usually detect purpura, but it needs to be judged based on specific examination items and purpura types. Purpura is mainly manifested as bleeding points on the skin or mucous membranes, which can be screened through routine physical examination items such as blood routine, coagulation function, and urine routine. However, diagnosis needs to be combined with clinical manifestations and further examination. Blood routine examination can detect thrombocytopenic purpura. When the platelet count is below normal, it may indicate diseases such as immune thrombocytopenia. Simultaneously observing hemoglobin levels can determine whether anemia is present. Coagulation function tests are suitable for purpura caused by coagulation abnormalities, such as hemophilia or vitamin K deficiency. By detecting indicators such as prothrombin time and activated partial thromboplastin time, coagulation factor function can be evaluated. Urine routine has suggestive significance for allergic purpura, and some patients may experience hematuria or proteinuria. Abnormal indicators discovered during physical examination should be comprehensively judged based on signs such as skin bruising and ecchymoses. Relying solely on physical examination may miss the diagnosis of specific types of purpura. Simple purpura is more common in women, with normal platelet and coagulation functions, and menstrual effects need to be ruled out. Hereditary hemorrhagic telangiectasia needs to be diagnosed through capillary endoscopy. In the early stage, some purpura only presents as mild skin bleeding points, and regular follow-up is still necessary when no abnormalities are found during physical examination. For recurrent purpura or symptoms such as joint swelling and pain, abdominal pain, etc., it is recommended to complete immunological examinations to exclude systemic lesions.

If purpura is found, the bleeding range, frequency, and cause should be recorded, and vigorous exercise and trauma should be avoided. Pay attention to supplementing vitamin C and vitamin K in diet, and reduce the intake of foods that may trigger allergies. The etiology of purpura is complex, and individuals with abnormal physical examinations should seek timely medical attention at a hematology or rheumatology and immunology department for further diagnosis through bone marrow puncture, skin biopsy, and other methods.