In Chinese medicine, there are "BA XU" (eight weak joints) in the human body, which are two elbow pits, two armpits, two groins, and two politeus. They are called "weak" because they are the weak links of the human body. These eight spots are where the "QI" of the five internal organs passes, so they are closely related to the five internal organs. They are also covered by sensitive skin, so they are easily invaded by external intrusion.
"Pai" is as the motion of tap or pat in Chinese, not too soft but not too strong.
Patting the Elbow pits
The elbow pits are where the three yin meridians of the Heart Sutra, Pericardium Meridian, and Lung Merdian pass through. Patting these areas can expel the heat, evil spirits, and toxins from the heart and lungs.
Patting the Armpits
The heart meridian, pericardium meridian, and gallbladder meridian run through the armpits. There is also a "great acupoint for relieving depression" called "Jiquan point (极泉穴)" hidden at the top of the axillary artery. It is the body's own "heart-saving pill". People who are easily angry and often depressed can pat it often.
Patting the Groin
The spleen is the groin at the root of the thigh, and mainly the Spleen Merdians and Stomach Meridians pass through it. Nowadays people sit for a long time, and blood circulation is not smooth. The turbid toxins in the body are all blocked in the groin, which is prone to blood stasis and phlegm. Patting the groin while taking into account the "Chongmen acupoint (冲门穴)" and the "Qi Chong acupoint (气冲穴)" can regulate reproductive system diseases.
Patting the Popliteus
The popliteal fossa is a fossa at the back of the knee joint. The Bladder Meridian and the Kidney Meridian run through this point. The "Weizhong acupoint (委中穴)" and the "Yingu acupoint (阴谷穴)" are distributed in the popliteal fossa. Traditional Chinese medicine has the saying "the back and waist are treated by the Weizhong acupoint". Weizhong is an important acupoint for treating back and leg pain; the Yingu acupoint can reduce dampness and turbid air, and is mostly used for urinary and reproductive system diseases.