Potassium permanganate sitz baths do not cause urinary tract infections. Potassium permanganate has a disinfecting and sterilizing effect. Sitz bath with potassium permanganate can treat perineum, anus and other diseases, such as vaginitis, hemorrhoids, etc. Potassium permanganate sitz bath will not cause urinary tract infection. However, it is important to pay attention to one basin for one person and not to use the same basin with other people. If you share the same basin or take a sitz bath together with someone who has a urinary tract infection, it may cause a urinary tract infection, but this is not because of the potassium permanganate, but because of indirect contact with someone who has a urinary tract infection. It should be noted that this product is corrosive in high concentrations and is usually diluted 1:5000 with warm boiled water for 10-15 minutes per sitz bath. This drug is a topical drug, oral administration leads to nausea, vomiting, corrosive edema, and even liver and kidney damage and cardiovascular function inhibition, circulatory failure and so on. Although potassium permanganate sitz bath has many effects, but can not treat all perineal and anal diseases, need to be used under the guidance of a professional doctor, avoid self-use, so as not to delay the condition.