Conception Vessel 任脉

Reviewed by · Licensed Acupuncturist & TCM Physician · Last reviewed June 2026

Conception Vessel (Rèn Mài, 任脉) is one of the eight extraordinary vessels in acupuncture and Traditional Chinese Medicine, Yin in polarity. The Ren Mai governs all Yin channels of the body, regulating menstruation, pregnancy, and childbirth, thus being crucial for female reproductive health.

Chinese任脉
PinyinRèn Mài
Groupextraordinary
Yin / YangYin
Number of points24
Master pointLU7
Coupled pointKID6

Channel pathway

The Conception Vessel originates in the uterus in females and the lower abdomen in males, emerging at REN1 (Huiyin) in the perineum. It ascends along the midline of the abdomen and chest, passing through the navel and sternum. It continues upwards along the throat and chin, terminating at REN24 (Chengjiang) below the lower lip. An internal branch connects with the Du Mai at the mouth and another ascends to the eyes.

Physiology & functions

The Ren Mai governs all Yin channels of the body, regulating menstruation, pregnancy, and childbirth, thus being crucial for female reproductive health. It also influences the Uterus, Kidneys, and Spleen, nourishing Yin and Essence, and supporting the body's fundamental Yin. It plays a significant role in the abdominal and thoracic cavities, impacting digestion, respiration, and the function of internal organs.

When the channel is disordered

Disorders of the Conception Vessel often manifest as gynecological issues such as irregular menstruation, infertility, leucorrhea, and difficult labor. Other symptoms include hernia, abdominal masses, pain in the epigastrium and lower abdomen, and urinary problems. Mental-emotional disturbances like depression or anxiety can also arise due to its connection with Yin and Essence.

Key & command points

All points on the Conception Vessel channel (24)

Frequently asked questions

What is the pathway of the Conception Vessel?

The Conception Vessel originates in the uterus in females and the lower abdomen in males, emerging at REN1 (Huiyin) in the perineum. It ascends along the midline of the abdomen and chest, passing through the navel and sternum. It continues upwards along the throat and chin, terminating at REN24 (Chengjiang) below the lower lip. An internal branch connects with the Du Mai at the mouth and another ascends to the eyes.

What does the Conception Vessel do in TCM?

The Ren Mai governs all Yin channels of the body, regulating menstruation, pregnancy, and childbirth, thus being crucial for female reproductive health. It also influences the Uterus, Kidneys, and Spleen, nourishing Yin and Essence, and supporting the body's fundamental Yin. It plays a significant role in the abdominal and thoracic cavities, impacting digestion, respiration, and the function of internal organs.

How many acupuncture points are on the Conception Vessel?

The Conception Vessel has 24 acupuncture points, from REN1 to REN24.

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⚠️ This page is for general education and is not medical advice. Acupuncture is a traditional practice; evidence varies by condition and study quality, and individual results differ. It does not replace diagnosis or treatment by a licensed professional. Always consult a qualified acupuncturist or physician.