Cold in the Uterus

Moxibustion is essential for this pattern and is often more important than needling alone. Warm needle technique (inserting the needle and burning a moxa cone on the handle) or indirect moxibustion (holding a moxa stick over the point) at REN-4, REN-6, and DU-4 is the core approach. Treatment sessions of 20 minutes per point are typical, given in courses of 10 sessions.

Key point combinations:

• REN-4 + DU-4 + BL-23: Warms the Uterus from both front and back, tonifies Kidney Yang at the root. Best for the Deficiency Cold subtype.
• REN-3 + SP-6 + ST-29 (Gui Lai): Directly regulates the Uterus, promotes menstrual Blood flow, and relieves pelvic pain. Better suited for the Excess Cold subtype with acute dysmenorrhea.
• SP-10 + LR-3 + SP-6: Moves Blood and Qi in the lower body. Add when Blood Stasis signs (dark clotted menses) are prominent.

Timing: For menstrual disorders, begin treatment 5-7 days before the expected period and continue through the first 2-3 days of menstruation. For infertility, treat throughout the cycle with emphasis on the luteal phase (post-ovulation). A minimum of 3 menstrual cycles of consistent treatment is usually needed to see stable results.

Electro-acupuncture: Low-frequency (2 Hz) stimulation between REN-4 and REN-3 can enhance pelvic blood flow. Avoid during confirmed pregnancy.

Ear acupuncture: Uterus, Kidney, Endocrine, and Shenmen points can be used as adjunctive treatment, with seeds or press tacks retained between sessions.

Differentiate Excess Cold from Deficiency Cold at the outset. This distinction drives the entire treatment strategy. Excess Cold (实寒): sudden onset, often traceable to cold exposure, sharp cramping pain that refuses pressure, cold limbs, pale face, bland taste, tongue pale with white coating, pulse deep and tight. Deficiency Cold (虚寒): gradual onset, dull aching pain that responds to warmth and gentle pressure, fatigue, poor appetite, loose stools, low libido, tongue pale and puffy, pulse deep and weak. Excess Cold requires warming and dispersing; Deficiency Cold requires warming and tonifying. Using strong dispersing formulas like Shao Fu Zhu Yu Tang for a primarily deficient patient will further deplete them.

The tongue is often the clearest diagnostic marker. In Excess Cold, look for a pale tongue with a white, possibly thick coating. In Deficiency Cold, the tongue is pale, may be puffy with teeth marks, and the coating is thin white. If you see purple or dark tongue with stasis spots, Blood Stasis has already developed and must be addressed alongside the Cold.

Moxibustion is often more effective than needling alone for this pattern. Direct or indirect moxa at REN-4 and DU-4 should be considered in every treatment plan. Many practitioners find that moxa alone outperforms acupuncture alone for Cold in the Uterus.

Timing treatment to the menstrual cycle dramatically improves outcomes. In the pre-menstrual and early menstrual phase, emphasize warming and moving Blood (Shao Fu Zhu Yu Tang approach). In the post-menstrual phase, emphasize nourishing Blood and tonifying Yang (Ai Fu Nuan Gong Wan or Wen Jing Tang approach). For infertility, focus Yang tonification in the luteal phase.

Do not overlook the Spleen. Chronic Cold in the Uterus very often coexists with Spleen Yang Deficiency. If there is bloating, loose stools, and poor appetite alongside menstrual symptoms, the Spleen must be addressed simultaneously or the warming herbs will not be properly absorbed and utilized.

Caution with blood-moving herbs in patients trying to conceive. Once implantation may have occurred (post-ovulation in the luteal phase), reduce or remove strong blood-moving herbs like Mo Yao, San Leng, and E Zhu. Continue gentle warming herbs like Ai Ye and Xu Duan which are safe and supportive in early pregnancy.