Which herb is used to tonify kidney Yang and treat back pain and urinary issues, commonly used in elderly?

• A. Shu Di Huang
• B. Lu Rong
• C. Du Zhong
• D. Bu Gu Zhi

Answer: (B)

Tonifying kidney Yang targets warming and strengthening the source of vitality that governs back strength, circulation, and urinary function. In elderly patients with kidney yang deficiency, signs often include chronic backache that improves with warmth, frequent or nocturnal urination, and a general decline in energy. Lu Rong, deer velvet, is a premier kidney Yang tonic. It rapidly reinforces kidney yang, anchors yang, and warms the lower back, while also improving urinary issues like frequency and incontinence. It also supports bone and sinew health, which is especially relevant with aging.

Shu Di Huang primarily nourishes Yin rather than Yang, so it doesn’t address the yang-deficiency-driven back pain and urinary symptoms as directly. Du Zhong is beneficial for back pain due to kidney deficiency but is more about structural support and generalized lower back tonification, not specifically the urinary issues. Bu Gu Zhi helps stabilize leakage and support kidney function, but its primary role is not the strongest match for back pain tied to aging.