Which herb is noted for invigorating blood and promoting lactation?

• A. Wang Bu Liu Xing
• B. Mai Ya
• C. Mu Tong
• D. Dong Kui Zi

Answer: (D)

Invigorating blood to promote lactation targets milk flow problems that come from blood stasis in the breast. When the milk ducts are obstructed or the tissue is not well supplied with blood, milk production can be hindered. An herb that actively moves blood and dissolves stagnation in the chest area can relieve this obstruction and allow milk to flow more freely. Dong Kui Zi is classically described as moving blood and promoting lactation, so it directly addresses both parts of the prompt. That dual action—blood movement plus lactation support—is what makes it the best fit.

The other herbs in the list work through different primary mechanisms. Mai Ya mainly supports digestion and spleen function to aid lactation indirectly. Mu Tong is a diuretic that drains damp-heat rather than promoting lactation. Wang Bu Liu Xing promotes lactation as well, but the emphasis here is on the herb whose traditional description centers on invigorating blood to facilitate milk flow, which is why Dong Kui Zi is the preferred choice.