What is the recommended ratio for potassium permanganate sitz bath?

The standard ratio for potassium permanganate sitz bath is 1:5,000, meaning 1 gram of potassium permanganate powder should be dissolved in 5,000 milliliters of warm water. The solution should appear light pink when properly mixed. This concentration ensures effective antibacterial action while minimizing irritation to the skin and mucous membranes. If a higher concentration causes burns or allergic reactions, medical attention is recommended promptly.

The 1:5,000 ratio has been clinically proven to be safe and effective. As a strong oxidizing agent, potassium permanganate can kill bacteria and fungi around the anal and perineal areas at low concentrations, making it suitable for adjunctive treatment of conditions such as hemorrhoids and vulvitis. If the concentration is too low, its antibacterial effect will be insufficient, failing to achieve the desired therapeutic outcome.

If the solution is too concentrated, it will appear dark purple or reddish-purple, which may easily cause skin and mucosal burns, leading to local redness, swelling, pain, peeling, and potentially disrupting the normal microbial balance in the anal or vaginal area, thereby worsening discomfort. Warm water (not hot) should be used for preparation to avoid degrading the medication's effectiveness, and the solution should be stirred until the powder is completely dissolved before use.

When preparing the solution, use a clean container to measure the warm water and accurately control the amount of powder. Sitz baths should last 10–15 minutes and be performed 1–2 times daily. After bathing, gently pat the affected area dry with a clean towel, keep the area clean and dry, and avoid vigorous rubbing.