What conditions are treated by the point located 3.5 cun lateral to the lower border of L1?

The point located 3.5 cun lateral to the lower border of L1 corresponds to the acupuncture point Spleen 21 (SP21), which is significant in Traditional Chinese Medicine for its role in regulating the spleen and addressing related conditions. This point is associated with the treatment of various issues connected to the spleen's functions, including metabolic and digestive health, which can lead to conditions such as hepatosplenomegaly—an enlargement of the liver and spleen. Additionally, this point is known for alleviating lumbar pain, making it integral in treating conditions affecting the lower back.

Understanding the anatomy and functions related to this point underlines its clinical significance. The spleen is crucial for digestion and the overall balance of bodily fluids, and any dysfunction can lead to systemic impacts, including abdominal swelling and discomfort in the lumbar region.

While neck pain and headaches relate more closely to points targeting the upper body, and emotional disturbances are typically treated with points that affect the heart and chest area, the designations for these conditions do not directly align with the location and functions associated with the point being examined. Thus, the focus on hepatosplenomegaly and lumbar pain accurately reflects the therapeutic potential of the point in question.