There is a hard lump in the meat of the crotch, the possible causes are as follows: 1, inguinal lymph nodes: most of the inguinal lymph nodes are inflammatory lymph nodes, of course, there is also the possibility of malignancy, if the crotch in the meat of the hard lump in the mobility is relatively poor and hard, it is recommended to carry out puncture examination, if necessary, to clarify the specific nature of the 2, inguinal hernia: hernia is caused by a lot of other reasons leading to the decrease in the tension of the soft tissues of the abdominal wall, and this time There will be an outward expansion of the contents of the abdominal cavity, resulting in the appearance of lumps, but usually the lumps will not be particularly hard, so if necessary, you can also be ultrasound to further understand the hard lumps are caused by what. Usually, if there is a hard lump in the flesh on the crotch, it is recommended to consult a general surgeon, who can further clarify its nature under the guidance of a general surgeon to understand whether treatment is needed.