The nature of the mass is doubtful, which may be inflammatory cyst or lymphadenitis, but it generally has a history of infection before; It may also be tumor-like, and generally it doesn't feel anything, and it doesn't hurt or itch; It is also possible that there is no lesion. Strengthen rest and enhance immunity, and it will disappear after a while.
It is strongly recommended to go to the hospital for surgery. If necessary, the doctor will give you a minor operation, take a small piece of that bag for pathological biopsy, and find out what the disease is.
If you are afraid of minor surgery, you can also do a CT to see what it is.
In short, we should pay attention to it!