无疼血尿尿血而无腹疼症状是肾癌、膀胱癌的早期症状。如伴有腹疼的尿血则可能是泌尿系统结石。因此,同样是血尿,良恶性疾病的区别主要看有无腹疼。无疼乳房包块乳房出现的包块如果没有疼痛感,用手触摸表面凹凸不平,与周围正常组织无明显界限,质地较硬,则提示可能是乳腺癌。 Painless hematuria and no abdominal pain are early symptoms of kidney and bladder cancer. Such as urinary blood with abdominal pain may be urinary stones. Therefore, the same hematuria, the difference between benign and malignant diseases mainly depends on whether there is abdominal pain. Pain-free breast mass If there is no pain in the mass of the breast, touch the surface unevenly with the hand, there is no obvious boundary with the surrounding normal tissue, texture is hard, it may suggest breast cancer.