Cold waist in women may be caused by kidney yang deficiency, localized cold, etc. Treatment includes medication and attention to keeping the waist warm. 1. Kidney yang deficiency: Women with kidney yang deficiency (lack of yang energy in the kidneys) and cold deficiency will not only show symptoms such as cold waist and cold limbs, but also be accompanied by soreness of the waist and knees, pallor, lack of mental energy, long and clear urination, and swelling of the body. In this case, you can use Jin Gui Ren Qi Pills and Yu Gui Pills under the guidance of a doctor to regulate. 2. Localized cold: women’s back cold may be caused by localized cold, when the cold air comes, if not timely attention, intention to keep warm, will lead to cold evil invasion of the body, causing the symptoms of back cold. When encountering this situation, it is recommended that patients pay attention to the waist to keep warm. When women have symptoms of lumbar cold, they should go to the hospital in a timely manner, under the guidance of a professional physician to use reasonable medication to deal with.