Answer
Breast lumps, pain, swelling or nipple discharge require prompt assessment because breast cancer has rarely been reported in men taking finasteride.
Sources for this answer
- NHSNHS · NHS medicine guidance
- Propecia 1mg tablets — Current selected SmPCemc · Summary of Product Characteristics
- Finasteride — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.