About This Herb*
Traditional Chinese Medicine background and properties
Herb Description*
Shepherd's purse is a common edible wild plant widely used in Chinese medicine to stop bleeding, promote urination, and benefit the eyes. It is especially valued for helping with heavy menstrual periods, blood in the urine, and red or painful eyes. As both a food and a medicine, it has a mild, gentle nature suited for most people.
Herb Category*
Main Actions*
- Cools the Blood and Stops Bleeding
- Clears Heat and Promotes Urination
- Clears Liver Heat and Brightens the Eyes
- Harmonizes the Spleen and Stomach
How These Actions Work*
'Cools Blood and stops bleeding' means Shepherd's purse can help control various types of bleeding that arise from excessive Heat in the Blood. This includes heavy menstrual periods, nosebleeds, blood in the urine, blood in the stool, and vomiting blood. Its cool nature helps settle the Blood back into its proper channels rather than letting it spill out recklessly. It contains compounds (like荠菜酸, or bursic acid) that shorten clotting time.
'Clears Heat and promotes urination' refers to the herb's ability to drain excess fluid and dampness from the body through the urinary system. Because it enters the Urinary Bladder channel and has a bland taste (which is associated with percolating dampness), it is used for edema (swelling from fluid retention), cloudy or difficult urination, and conditions where Damp-Heat accumulates in the lower body.
'Clears Liver Heat and brightens the eyes' describes how Shepherd's purse enters the Liver channel and cools Liver Heat that flares upward to the eyes. This makes it useful for red, swollen, and painful eyes, as well as cloudy vision or corneal opacities. Fresh juice from the root can even be applied directly to the eyes in traditional practice.
'Harmonizes the Spleen' reflects the herb's sweet taste, which gently supports digestive function. Classical texts note it can help settle the Stomach, aid digestion, and treat dysentery and diarrhea.
Patterns Addressed*
In TCM, symptoms cluster into recognizable patterns of disharmony that reveal what's out of balance in the body. Ji Cai is traditionally associated with these specific patterns.
The following describes this herb's classification within Traditional Chinese Medicine theory and is provided for educational purposes only.
Why Ji Cai addresses this pattern
When Heat enters the Blood level, it agitates Blood and forces it out of the vessels, causing various types of bleeding. Jì Cài's cool nature directly counteracts this Heat in the Blood, while its sweet and bland tastes gently nourish without creating stagnation. It enters the Liver channel, which stores Blood, and its cooling action settles the Blood back into its proper pathways. This makes it particularly suited for bleeding conditions driven by Blood Heat, including heavy menstrual flow, nosebleeds, hematuria, and hematemesis.
A practitioner would look for one or more of these signs
Heavy or prolonged menstrual periods driven by Blood Heat
Hematuria with a sense of heat or burning
Nosebleeds from upward flaring of Heat
Bloody stool from Heat in the intestines
Why Ji Cai addresses this pattern
When Damp-Heat accumulates in the Lower Burner (lower abdomen and urinary system), it obstructs the water passages and produces symptoms like difficult urination, edema, and turbid urine. Jì Cài enters the Urinary Bladder channel and has a bland taste that percolates dampness, combined with a cool nature that clears the Heat component. This dual action of clearing Heat while draining Dampness through urination makes it well suited for this pattern.
A practitioner would look for one or more of these signs
Swelling from fluid accumulation, especially in the lower body
Scanty, difficult, or painful urination
Turbid or milky urine (chyluria)
Why Ji Cai addresses this pattern
When Liver Fire flares upward, it often affects the eyes, producing redness, pain, swelling, and blurred vision. Jì Cài enters the Liver channel and has a cool nature that directly counteracts this rising Liver Fire. Classical sources like the Rì Yòng Běn Cǎo specifically note its ability to 'cool the Liver and brighten the eyes.' It can address both acute red, painful eyes and more chronic conditions like corneal opacities caused by prolonged Liver Heat.
A practitioner would look for one or more of these signs
Red, painful, swollen eyes from Liver Fire rising
Visual cloudiness or spots before the eyes
Gritty, burning sensation in the eyes
TCM Properties*
Cool
Sweet (甘 gān), Bland (淡 dàn)
Whole plant / Aerial parts (全草 quán cǎo)
This is partial information on the herb's TCM properties. More detailed information is available on the herb's dedicated page
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.