Ma Bo 马勃 — Chinese Herbal Medicine

Ma Bo (马勃) At a Glance

• Herb: Ma Bo
• Chinese name: 马勃 (Ma Bo)
• Latin name: Lasiosphaera seu Calvatia
• Nature: Neutral
• Taste: Acrid
• Meridian: Lung
• Category: Clearing heat and detoxifying

Ma Bo, the dried fruiting body of giant puffball fungi, has been recorded in Chinese medicine since the Tang dynasty, prized for its remarkable lightness and its affinity for the Lung channel. Its acrid, dispersing nature combined with a neutral thermal quality makes it effective against fire-toxin lodged in the throat without risk of further drying delicate Lung fluids. Clinically, it serves as a frontline herb for acute pharyngitis, laryngitis, and aphonia, and is applied both internally and topically to arrest bleeding.

Actions & Therapeutic Effects

• Clears heat and resolves fire-toxin — disperses accumulated heat in the Lung and throat, relieving redness, swelling, and pain in acute throat disorders
• Benefits the throat and restores the voice — directly targets the larynx to reduce inflammation and reverse hoarseness or sudden loss of voice
• Cools blood and stops bleeding — astringes and constricts vessels; used internally for hemoptysis and epistaxis, and topically as a powder to halt surface hemorrhage
• Disperses wind-heat from the exterior — assists in releasing early-stage febrile conditions when throat pain is a prominent symptom

Clinical Applications in TCM

• Acute sore throat with swelling and fire-toxin: combined with Jie Geng, Niu Bang Zi, and Gan Cao (variation of Niu Bang Jie Geng Tang)
• Hoarseness and aphonia due to Lung heat: paired with Chan Tui and Pang Da Hai for descending and moistening action
• Coughing blood (hemoptysis) from Lung heat: used alone powdered or combined with Bai Ji and Ou Jie
• Epistaxis and gingival bleeding: applied as insufflated powder locally or taken with Sheng Di Huang decoction
• Diphtheritic or pseudomembranous throat conditions: combined with Huang Lian, Shan Dou Gen, and Xuan Shen
• Topical hemostasis for traumatic bleeding wounds: raw powder applied directly to the wound surface

Precautions & Safety

• Dosage: 1.5–6 g in decoction, wrapped in cloth (cloth-bag煎); 0.6–1.5 g as powder taken directly; apply liberally as topical hemostatic powder
• Contraindicated in wind-cold sore throat without heat signs, and in patients with deficiency-cold of the Lung and Spleen; use cautiously during pregnancy

Classical TCM Formulas

• Ma Bo San (马勃散): Ma Bo + Jin Yin Hua + Lian Qiao + She Gan — acute pharyngitis.
• Pu Ji Xiao Du Yin (普济消毒饮) includes Ma Bo: Huang Qin, Huang Lian, Niu Bang Zi, Ma Bo, Bo He, Chan Tui, Jie Geng, Gan Cao — epidemic parotitis (mumps). Source: Dong Yuan Shi Xiao Fang.
• Ma Bo topical: spore powder dusted onto bleeding surfaces.

Herb Combinations

• Ma Bo (马勃) + Xuan Shen (玄参) + Jie Geng (桔梗): clears Heat and benefits the throat for acute pharyngitis with loss of voice.
• Ma Bo (马勃) + Jin Yin Hua (金银花) + She Gan (射干): the Heat-toxin throat trio for acute tonsillitis.
• Ma Bo (马勃) topical powder: applied directly as a haemostatic for bleeding gums, epistaxis, and minor wounds.

Pharmacology & Research

Antibacterial: calvacin and calvatianin inhibit a broad spectrum of gram-positive and gram-negative bacteria, supporting its fire-toxin-clearing action.
Hemostatic: spore dust mechanically occludes capillaries and activates local platelet aggregation, validating topical hemorrhage control.
Anti-inflammatory: ergosterol and polysaccharide fractions suppress prostaglandin synthesis, reducing pharyngeal mucosal edema.
Antitumor: β-glucan polysaccharides demonstrate immunomodulatory activity with in vitro cytotoxicity against select carcinoma cell lines.

Classical Descriptions

• “Ma Bo, acrid and neutral, enters the Lung; it clears heat, detoxifies, and stops bleeding — principal herb for throat swelling and voice loss.” — *Ben Cao Gang Mu* (本草纲目), Li Shizhen, 1596