In general, taking moderate amount of Mucuna pruriens as prescribed by doctor will not cause damage to kidney. If large doses of Mouton are taken for a long period of time, it will cause some harm to kidney function and cause kidney diseases, such as nephritis and kidney failure. Mutong is a water-dispersing and dampness-expelling (promoting the flow of water to dispel dampness) herb with the effects of diuretic and diaphoretic (improving the problem of dribbling in the urine and urinating in a small amount without passing), promoting menstruation and breast-feeding, and clearing the mind and removing vexation (clearing vexation and heat from the heart). It is used for treating gonorrhea (increased frequency of urination, astringent pain in urination), heartburn and redness in urination, edema, menstrual closure and breastfeeding, sores on the mouth and tongue, and paralysis and pain due to dampness-heat. Usually there is no long-term overdose of Mouton, usually does not cause harm to the kidneys. As Mouton has a certain degree of toxicity, if patients take long-term overdose will cause some harm to the kidneys, causing kidney diseases, such as nephritis, kidney failure, and subsequently appear various adverse reactions of kidney failure. Those who are allergic to Mouton are forbidden to use Mouton to avoid adverse reactions. Pregnant women need to use Mouton with caution. Before taking Mouton, you need to go through a professional doctor’s diagnosis and follow the doctor’s instructions to take it, do not use it on your own at will, so as to avoid improper use of medication, which will have certain effects on your health.