Hip joint pain touching up a lump clinically is mainly caused by hip bursitis, hip tumor lesions and lymph node enlargement, local folliculitis and other causes. 1. Hip bursitis: usually occurs in the hip rotor and other parts of the local pressure pain. 2. Hip tumor lesions: such as malignant tumors of hip joint, generally more obvious pain at night, accompanied by obvious limitation of hip joint activities, local lumps with unclear boundaries and no obvious mobility. It needs to be clearly diagnosed by MRI and pathologic examination. 3. Enlarged lymph nodes: usually appear at lymph node aggregation, such as the medial groin area of the hip joint. 4. Localized folliculitis: generally due to local infection and other reasons, local pressure and pain is obvious, and the hair follicles are localized with red and swollen manifestations. Hip joint pain feel up a lump need to go to the hospital in time, clear cause, so as not to delay the diagnosis and treatment.