There are many possible causes of pain over the left side of the pubic bone, the common ones are as follows: 1, there may be injuries to the abdominal wall here, such as direct violent blows to this area, or strains of the abdominal wall muscles, which may cause pain here. 2, there may be a hernia situation. The so-called hernia refers to the organs in the abdominal cavity, through the weak parts of the abdominal wall into the external, which may cause pain. 3, there may be urinary system-related diseases, such as inflammation of the urinary system, stones, etc. 4, there may be gynecological-related diseases, for which there may be ovarian torsion, or pelvic inflammatory disease. 5, here suggests that there may also be gastrointestinal-related diseases, such as colitis or intestinal tract strain. There may be colitis or occupational changes in the intestinal tract, such as rectal or colon cancer. In conclusion, there are many reasons for pain in this area, and it is recommended that once the symptoms appear, patients should go to the orthopedic clinic as soon as possible to clarify the cause.