GB24 Sun and Moon

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

GB24 (Riyue, “Sun and Moon”) is the Front-Mu of Gallbladder point of the Gallbladder Channel Meridian. It is located on the anterior chest, directly below the nipple, in the seventh intercostal space, 4 cun lateral to the anterior midline. It regulates qi, harmonizes the middle jiao, and benefits the gallbladder.

Location

On the anterior chest, directly below the nipple, in the seventh intercostal space, 4 cun lateral to the anterior midline.

Needling

Oblique insertion superiorly or inferiorly 0.5-0.8 cun. Caution: pneumothorax.

⚠ Pneumothorax risk: oblique/shallow only, never deep perpendicular over the chest wall.

TCM functions

Regulates qi, harmonizes the middle jiao, and benefits the gallbladder.

Indications

Hypochondriac pain, bitter taste in mouth, vomiting, acid regurgitation, jaundice.

Front-Mu of GallbladderMeeting point of GB & SP

Clinical notes

As the Front-Mu point of the Gallbladder, GB24 is a primary point for direct access to and regulation of the Gallbladder organ, making it essential for conditions like cholecystitis, gallstones, and jaundice. It excels at harmonizing the Middle Jiao, addressing issues such as epigastric pain, nausea, and vomiting, especially when related to Liver-Gallbladder disharmony. Its meeting with the Spleen meridian further enhances its ability to resolve damp-heat in the Middle Jiao. Clinically, it is often paired with Danzhong (CV17) for chest and hypochondriac distention.

On the Gallbladder Channel channel

GB24 is one of 44 points on the Gallbladder Channel Meridian. Nearby points:

Frequently asked questions

Where is GB24 located?

GB24 (Riyue) is located on the anterior chest, directly below the nipple, in the seventh intercostal space, 4 cun lateral to the anterior midline.

What is GB24 used for?

GB24 regulates qi, harmonizes the middle jiao, and benefits the gallbladder. Common clinical indications include hypochondriac pain, bitter taste in mouth, vomiting, acid regurgitation, jaundice.

How is GB24 needled?

Oblique insertion superiorly or inferiorly 0.5-0.8 cun. Caution: pneumothorax. Caution: ⚠ Pneumothorax risk: oblique/shallow only, never deep perpendicular over the chest wall.

Which meridian is GB24 on?

GB24 is a point on the Gallbladder Channel Meridian (Zú Shàoyáng Dǎnjīng).

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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.