Legs swollen with hard packs after touching may be related to coagulation dysfunction, pathologic fractures, sprains and other reasons. 1. Coagulation dysfunction: such as cirrhosis, hemophilia, thrombocytopenic purpura and other diseases, resulting in coagulation abnormalities, can cause hematomas when the leg is touched. The surface of these hematomas is generally harder on palpation because of higher tension. 2. Pathological fracture: such as multiple myeloma, bone tumors and other diseases, it is easy for a mild external force to lead to local pathological fracture, edema and the phenomenon of hard bags. 3. Sprains: Sprains of the feet can lead to joint ligaments, blood vessels and other injuries, localized bruising leading to the emergence of hard packs. It is recommended that those who have swollen legs with hard packs should go to the hospital in a timely manner to clarify the cause of the disease and standardize the treatment under the guidance of the doctor, so as not to delay the disease to bring adverse effects on the body.