If you're still on your period, the optimum time to perform BSE is: When your breasts aren't as painful or swollen. It is usually 5 to 10 days after your cycle starts. 2. If you don't have your period anymore, set a reminder for yourself. Check your breasts on the first of every month. 3. A breast self-exam is also recommended for all males at high risk for breast cancer. Every month, perform a breast self-examination.   Other symptoms that indicate you should see a doctor about breast cancer include: Thickening, a lump, or a tight knot Clotting, heat, dryness, as well as spots on the skin Size or shape of breast changes Itchiness, scaly sore or rash on the nipple, dimpling or puckering of the skin Pulling of your nipple or any other body parts Nipple discharge that appears from nowhere