Efficacy and Effects of Willow Leaves

In daily life, willow leaves are a common plant—not only ornamental but also used medicinally. So, what are the medicinal properties and effects of willow leaves?

Medicinal Properties and Effects of Willow Leaves

Willow leaves possess heat-clearing, detoxifying, diuretic, liver-calming, analgesic, and rash-resolving properties. They are bitter in taste and cold in nature, exhibiting potent heat-clearing and detoxifying effects. Clinically, they are used to treat conditions such as heat-induced urinary tract infections (heat dysuria), urolithiasis (stone dysuria), leukorrhea (white turbid urine), carbuncles, furuncles, and abscesses. As willow leaves enter the Kidney channel, they demonstrate notable diuretic activity and may serve as an adjunctive therapy for urethritis, cystitis, and bladder stones. They also exert anti-inflammatory and analgesic effects, making them suitable for treating scalds and burns, joint swelling and pain, and toothache. Additionally, willow leaves clear heat, promote dispersion, and facilitate eruption of rashes; when prepared as a decoction for oral administration and external washing, they are effective in managing febrile rashes (sha zhen) and pediatric exanthematous diseases (e.g., measles or chickenpox). Willow leaves contain abundant iodine, which helps replenish iodide ions and is highly effective in treating endemic goiter caused by iodine deficiency. They also show marked efficacy against inflammatory conditions such as mastitis, pharyngitis, and bronchitis.

Willow leaves should be used only under the guidance of a qualified healthcare professional. A prescribed dosage must be followed consistently over a specified duration—neither excessive nor intermittent use is recommended. During treatment, dietary considerations are important: avoid spicy, raw, cold, or greasy foods, and abstain from smoking and alcohol consumption. If no therapeutic effect is observed within a short period, or if intolerable adverse reactions occur, discontinue use immediately and consult a physician.

Due to their cold nature, willow leaves are unsuitable for individuals with deficient Spleen and Stomach Yang (i.e., those with spleen-stomach deficiency-cold) or for pregnant women. We hope this information proves helpful to you!