There is a hard lump above the left breast related to breast fibroma, breast hyperplasia, breast tumor and other factors. A hard lump on the left breast should be considered and breast fibroid related, most patients are bad life habits, high estrogen level in the body, due to estrogen long-term stimulation will lead to excessive proliferation of fibrous tissues in the breast, breast structure disorders will form local hard lumps, lumps are small without pain need to be closely observed. Women of childbearing age who develop a lump on the upper left breast are considered to be related to breast hyperplasia. Hyperplasia is a benign disease, and increased hormone levels prior to menstruation can lead to an increase in the size of the lump, which may also be painful. After the discovery of breast lumps should be regularly followed up, closely observed and timely to the hospital for ultrasound review, because it may also be caused by breast tumors, early breast tumors have no obvious symptoms, with the increase in size or metastasis of the lumps will also cause pain manifestations.