Educational information, not medical advice.See how evidence is graded

cheonchogeun

Do not self-treat with cheonchogeun

Who should avoid cheonchogeun?

When should you see a doctor?

See a doctor straight away if you notice yellow skin or eyes, dark urine that does not clear after you stop, pain in your upper right belly, or unusual tiredness — these can be signs of liver trouble. Get urgent help for bleeding that will not stop, blood you cough up or vomit, or large unexplained bruises. Also call a doctor if you have less urine than usual or swollen ankles, which can point to the kidneys. Tell any doctor who tests your urine that you have taken madder root, because it turns urine red. If you have taken it regularly for weeks or months, speak to your doctor about liver and kidney blood tests even if you feel fine.

Educational information, not medical advice — ask your doctor or midwife.

What is cheonchogeun?

Cheonchogeun is the dried root of a climbing plant called Rubia akane. It belongs to the madder family. In English, most people call it madder root.

Korean medicine has used it for a very long time. It was given for bleeding, for bruises and for period problems.

It is a single herb, not a mixed formula. The root is usually boiled in water and drunk as a decoction (a strong boiled tea). It was also used as a red dye.

Here is the honest verdict up front. There are no published human trials of this root. Traditional use is a record of what people did, not proof that it works.

Roots from the madder family hold compounds that damaged DNA in lab tests. The same compounds caused tumours in animals. That is why several countries limited their sale.

Treat cheonchogeun as a high-risk plant, not a casual supplement.

How does cheonchogeun work?

No one has shown how, or whether, this root works in people. Everything below is only a theory. It comes from tradition, from lab dishes and from animals.

Korean and Chinese texts say it "cools the blood" and "moves stuck blood". In plain words, healers used it to slow bleeding. They also used it to break up bruises and clotted, painful periods.

Lab work on madder roots has looked at platelets (the blood cells that form clots). It has also looked at inflammation (swelling and heat in the body). These are test-tube and animal findings only.

They do not tell you what a cup of the tea would do in your body.

What forms does cheonchogeun come in?

The most common form is the dried, sliced root, boiled into a decoction. This is also the traditional form. A charred or dry-fried version was used when the goal was to slow bleeding.

You may also meet it as a powder, in capsules or in tinctures. It turns up inside mixed Korean and Chinese herb formulas too.

Madder root is also sold as a cloth dye. Artists use it as a lake pigment. Dye-grade root is not made for swallowing, so never take it by mouth.

Where it comes from:

Madder roots appear in Korean, Chinese and Japanese medical texts going back many centuries. In them, cheonchogeun was a standard blood-moving herb. Its Chinese name is qian cao.

Related plants were used in India as manjistha. In Europe, madder was both a dye and a folk remedy for kidney stones.

European regulators pulled madder products from the market in the 1990s. They acted after animal cancer findings.

What does cheonchogeun help with?

What are the side effects of cheonchogeun?

Good to know:

Red urine is the effect people notice most, and it is not dangerous by itself. It can, however, make you think you are bleeding when you are not, or hide real blood in your urine.

The serious concern is not a common side effect you would feel. It is the cancer risk found when animals were fed madder root over time, which is why European regulators withdrew these products.

You cannot feel DNA damage happening, so "I took it and felt fine" is not reassurance. That is the main reason we rate this root high-risk.

Options to discuss with a clinician

For every one of the reasons people reach for madder root, there are routes that have been studied far more carefully — and each of them starts as a conversation with a doctor, pharmacist or qualified herbalist rather than a straight swap.

- **Bruising and injury pain:** worth asking a clinician whether the bruising fits the injury. Bruises that appear easily, or without a knock, can point to a clotting (blood-thickening) problem or a medicine you are already taking, and that is something to have checked before anything is added.

- **Heavy or painful periods:** a GP or gynaecologist can look for causes such as fibroids (non-cancerous growths in the womb), endometriosis or low iron. Treatment choices differ a lot depending on which it is, so a diagnosis usually opens more doors than it closes.

- **Joint pain:** worth asking what kind — wear-related, inflammatory, or something else. Physiotherapy, movement plans and prescribed options are all reasonable things to raise.

- **Kidney and bladder stones:** these need imaging and a urine check. Ask what type of stone it is; prevention advice depends entirely on the answer.

- **Nosebleeds or blood in phlegm:** both deserve prompt medical assessment rather than self-treatment, especially if they keep happening.

Review status

This page has not been signed off by a pharmacist and is not published. It is shown here for a policy decision only.