Leukorrhea is accompanied by nipple pain, may be caused by pregnancy, ovulation, etc., the specific also according to their own situation. 1. Pregnancy: If you have a normal sex life, after pregnancy, hormonal changes will lead to nipple enlargement, breast swelling and pain, leukorrhea, and other symptoms, you can go to the hospital to carry out HCG examination, if HCG positive, usually suggests pregnancy. 2. Ovulation: After menstruation, you will enter the ovulation period, when the hormone level changes, the progesterone level will increase, which will cause leukorrhea, slight pain in the abdomen, and nipple swelling and pain, usually this symptom lasts for a few days and then subsides, if the symptom is not relieved, you should go to the hospital in time. If the symptoms do not subside, you should go to the hospital in time to find out the cause of the disease and treat the symptoms under the guidance of the doctor.