What criteria should I use to refer a patient for further investigation of suspected breast cancer?

Referral criteria for suspected breast cancer include:

• Consider a suspected cancer pathway referral for an unexplained axillary lump in women aged 30 and over [1. 4. 2].
• Refer using a suspected cancer pathway referral for an unexplained breast lump in women aged 30 and over, with or without pain [1. 4. 1].
• Consider a non-urgent referral for breast lumps in women under 30 [1. 4. 1].
• Consider a suspected cancer pathway referral if there are skin changes that suggest breast cancer [1. 4. 2].