I have lump in my right axilla due to tuberculous infection. And I’m having pain both breast just before 20 days of my period. What could be the reason?

 It's possible that the lump is related to the pain you're experiencing before your period. Many women experience pain in their breasts before menstruation, and it's often attributed to changes in hormone levels.

However, it's also possible that the lump is due to a tuberculous infection. Tuberculosis can cause lumps in the armpit, and it can also cause pain in the breasts. If you suspect that you have tuberculosis, you should see a doctor right away for treatment.