For menstrual pain due to a cold uterus, the commonly used gynecological formula "Wen Jing Tang" is typically selected. Wen Jing Tang is a standard formula for regulating menstruation and is generally used for cold uterus and painful menstruation due to a deficiency-cold in the Ren and Chong meridians with blood stasis. Its main ingredients include Evodia, Ophiopogon, Cinnamon Twig, Angelica, Chuanxiong, Peony, Moutan Bark, Donkey-hide Gelatin, Ginseng, Licorice, Pinellia, and Ginger. If there is severe cold pain in the lower abdomen, Moutan Bark and Ophiopogon are removed and Artemisia leaves are added, or Cinnamon is used instead of Cinnamon Twig to enhance the effect of dispelling cold and relieving pain. If there is abdominal distension, Cyperus and Lindera are added.