Thank you for your query.
The lump you sound could be one of the following :
- a benign tumour of the breast.
A precancerous or cancerous lesion of the breast.
It could not be infectious or traumatic as it is not painful.
However, without examining you, it is difficult to say exactly what the lump is.
You would need proper examination , mammogram
and maybe removal and biopsy
of the lump to truly define the nature of the lump.
Go ahead with your appointment next week, and all the best.