It will not increase. Eating mutton and angelica soup during menstruation will not increase breast nodules. Angelica is a traditional Chinese medicine that has the functions of nourishing blood and regulating menstruation, activating blood circulation and relieving pain, moistening intestines and laxative. Breast nodules are a benign disease caused by breast cancer. Infection, injury, fat necrosis and other reasons cause different nodules to appear in the breast. Therefore, eating mutton and angelica soup during menstruation will not increase breast nodules, but will promote blood circulation.