It is 3 inches below the navel, with the four fingers except the thumb together and the middle joint of the middle finger as the standard, and the width is 3 inches. Based on this, the point below the four fingers of navel is Guanyuan point.

2. Qi Hai

In the lower abdomen, on the anterior midline, under the umbilicus 1.5 inches.

3. Zusanli

Located at the edge of the lateral four transverse fingers and tibia below the knee. When looking for this acupoint, you can surround your knees with a tiger's mouth, put your fingers together, put your index finger on the front edge of your tibia, and the position pointed by the tip of your middle finger is this acupoint.

Extended data:

Acupoint: It is the subcutaneous electric field area with the highest potential shared by humans and animals, the place where nerve trunks and nerve endings pass, and the place with the highest potential energy in humans and animals. The injury or necrosis of this part, as well as the injury and obstruction of external force, will cause numbness, swelling, itching, pain, acid and other symptoms.

It may even cause discomfort in tissues, organs, circulation, heart and brain, and may also lead to disability, failure, suffocation and death. Acupoints are important electric fields in life, and they are also closely connected with the brain. There are 720 acupoints in the human body, including 402 medical acupoints, including 108 key acupoints, which are divided into living acupoints and dead acupoints, 72 non-fatal acupoints and 36 fatal acupoints.

References:

Baidu encyclopedia-acupoint