Remember a word, it's a three-point poison. Motherwort sometimes aggravates diseases such as obstetrics and gynecology. There are clinical reports that motherwort can aggravate dysmenorrhea; Causing postpartum uterine contraction pain. Motherwort causes acute renal failure. Some animal experiments suggest that motherwort may have adverse reactions such as nephrotoxicity. Leonurus japonicus can cause mild inflammation of renal interstitium, a small amount of fibrous tissue hyperplasia and mild fatty degeneration of renal tubules in rats [4]. Feeding motherwort extract to pregnant rabbits can lead to miscarriage. Japanese researchers used mice to study the anti-cancer effect of motherwort, but unexpectedly found that motherwort could stimulate the growth of pregnancy-related breast cancer. Motherwort may cause allergic reactions in some patients, and patients may have symptoms such as redness, chest tightness, palpitations and shortness of breath [7]. Excessive use of motherwort cream can lead to diarrhea and abdominal pain. There are also reports of death caused by taking motherwort. Therefore, in order to use this drug safely and reasonably, patients are advised to consult a licensed Chinese medicine practitioner or licensed pharmacist when using this drug. This product is an over-the-counter drug for the treatment of irregular menstruation. If it is normal, don't take it unless necessary.