Trifolium pratenseRed clover is a plant. The flower tops are used to make medicine. Red clover is used for many conditions, but so far, there isn’t enough scientific evidence to determine whether it is effective for any of them. It doesn’t seem to work, though, for lowering cholesterol or controlling hot flashes in women. Red clover is used for cancer prevention, indigestion, high cholesterol, whooping cough, cough, asthma, bronchitis, and sexually transmitted diseases (STDs). Some women use red clover for symptoms of menopause such as hot flashes; for breast pain or tenderness (mastalgia); and for premenstrual syndrome (PMS). Red clover is applied to the skin for skin cancer, skin sores, burns, and chronic skin diseases including eczema and psoriasis. In foods and beverages, the solid extract of red clover is used as a flavoring ingredient. Red clover contains hormone-like chemicals called isoflavones that seem to cause reproductive problems in certain animals. Experts think a diet high in isoflavones may have been responsible for reports of reproductive failure and liver disease in cheetahs living in zoos. In large quantities, red clover can cause sterility in livestock.