What is the medicinal value of fennel?

Jul 11, 2025 Source: Cainiu Health
Dr. Sun Lianqing
Introduction
The main medicinal values of fennel include dispersing cold to relieve pain, regulating qi to harmonize the stomach, warming the kidneys and nourishing the liver, promoting blood circulation to alleviate pain, and expelling wind to remove dampness. The use of traditional Chinese herbs should follow medical advice. Although fennel has various medicinal benefits, its usage should adhere to the principle of moderation, as excessive intake may cause side effects such as nausea and vomiting. Pregnant women and patients with specific medical conditions should consult a physician before use.

Generally speaking, the medicinal value of fennel mainly includes dispersing cold to relieve pain, regulating qi to harmonize the stomach, warming the kidneys and liver, promoting blood circulation to alleviate pain, and expelling wind and dampness. The use of traditional Chinese medicine should follow medical advice. A detailed analysis is as follows:

1. Dispersing Cold to Relieve Pain

Fennel has a warm nature and a pungent taste, and enters the kidney and bladder meridians. It can dispel cold pathogens from the body and alleviate cold abdominal pain and hernia pain caused by cold stagnation. Its pungent and warm properties help to unblock meridians affected by cold stagnation.

2. Regulating Qi and Harmonizing the Stomach

Fennel enters the spleen and stomach meridians. Its aromatic and pungent properties help regulate qi and relieve abdominal distension, poor appetite, nausea, and vomiting caused by stagnation of spleen and stomach qi, thereby promoting digestion by regulating the flow of qi in the spleen and stomach.

3. Warming the Kidneys and Liver

Fennel belongs to the liver and kidney meridians. Its warm nature can nourish yang energy in the liver and kidneys, helping to alleviate cold pain in the lower back and knees and infertility caused by cold deficiency in the liver and kidneys, thus warming and invigorating these organs and dispelling cold.

4. Promoting Blood Circulation to Relieve Pain

By dispersing cold pathogens and resolving qi stagnation, fennel can indirectly improve pain caused by cold-induced blood stasis or qi stagnation-related blood stasis, such as lower abdominal pain in women. However, its main mechanism is not directly promoting blood circulation but rather assisting in pain relief through its warming and penetrating properties.

5. Expelling Wind and Dampness

With its pungent and warm dispersing nature, fennel can expel wind and dampness from the body and provide some relief for conditions such as rheumatic pain and joint cold pain, especially for bi syndrome caused by cold-dampness. It alleviates discomfort by warming the meridians, dispersing cold, and removing dampness.

Although fennel has various medicinal benefits, its use should follow the principle of moderation, as excessive intake may cause side effects such as nausea and vomiting. Pregnant women and patients with specific diseases should consult a doctor before use and avoid self-administering large doses.

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