How would breast cancer in men be discovered?

Same as women: Physical examination with a doctor. Feeling a firm hard painless breast lump. Mammogram and breast ultrasound sometimes used. It is a rare condition in men.

Examination by physi: If you have a swelling in one of your breasts and you feel a distinct lump, you should get a physicina to examine you. Presence of a lump may require a biopsy if it is suspected to be cancerous(hard and painless lumps).