The cancer lesion is not painful unless has secondary infection.The spot you refer is painful ,so lesser chance of cancer.
It can result due to weakness of ribs ( Calcium defficiensy, Vit. D defficiensy)
The paternal family history has same significance . So It's better to be alert & careful. Get regular check ups by a specialist.& also mammography
as advised.( once a year)
Self assessment by palpation of breast every 15 days is important.
The indication for complete hysterectomy