Why do I have a purple spot on my breast?

no. itz not cancer it may be piles.  

  Fortis Hospital is one of the best cancer hospitals in Bangalore and has facilities for paediatric and adult oncology in India. Cost of breast cancer treatment varies from hospitals to hospital and person to person depending on the person condition, surgeon, number of therapies, lab examination....

For most types of cancer, coffee appears either to decrease risk of cancer, or to have no effect on cancer risk at all. Even in countries with very high intake of caffeine from coffee, such as Scandinavian countries, research does not support a link between coffee or caffeine and breast cancer risk.....