There is a lump in the armpit. It hurts when you press it.

Female armpit shows mass, and there is pain, first of all should be clear about the specific location of the mass. If it is a body mass, sebaceous cyst combined with infection, generally after local treatment, can be quickly improved; if it is a subcutaneous mass, it is recommended to clear the condition through ultrasound examination, more common causes are lymph node enlargement, fibroma, lipoma and so on.