Clinically, patients with subcutaneous tissue with hard lumps after inadvertent bruises. Generally, according to the specific nature of the hard masses, different clinical treatment methods can be adopted: a. If the hard masses are caused by the formation of subcutaneous local hematoma after the bump, the hematoma volume is small at this time, you can promote faster absorption of the hard masses through local ice, heat, combined with massage and physical therapy methods. If the volume of the hard mass is larger, it does not subside significantly through physical therapy and is accompanied by obvious pain symptoms. Patients can consider surgery to cut the skin and subcutaneous tissue to remove the hematoma, combined with analgesia, anti-infection, edema and other treatment, can be faster to relieve the symptoms of subcutaneous hard mass. Second, if the patient’s bump injury subcutaneous granulation tissue abnormal proliferation and the formation of hard lumps. If the abnormal proliferation of granulation tissue, no obvious pain symptoms, can be closely observed. If the hard mass is accompanied by redness, swelling, pain, and progressive increase in volume. Surgical excision can be considered to avoid serious complications.