Once a day is enough for most people. A single daily wash with warm water, ideally during your regular shower, keeps the perianal area clean without stripping the skin of its natural protective oils. Washing twice a day is reasonable if you have multiple bowel movements, but going beyond that can actually cause problems.
Why Once a Day Works
The skin around your anus has hair follicles, sweat glands, and oil-producing glands, just like skin elsewhere on your body. Those oil glands maintain a thin barrier that keeps moisture balanced and protects against irritation. Washing once daily removes sweat, bacteria, and fecal residue without disrupting that barrier. The Royal College of Obstetricians and Gynaecologists specifically recommends cleaning this area no more than once a day, and guidelines from dermatology and colorectal specialists echo that advice.
If you have a condition like irritable bowel syndrome that causes several bowel movements a day, a second wash makes sense. Cleaning soon after a bowel movement can help reduce the spread of fecal bacteria. But the goal is gentle rinsing, not aggressive scrubbing.
What Happens When You Overwash
More washing doesn’t mean cleaner or healthier. The American Society of Colon and Rectal Surgeons warns that excessive cleaning removes the skin’s natural barriers and makes irritation worse, not better. The perianal area is especially vulnerable because it stays warm and enclosed, which means damaged skin heals slowly and gets re-irritated quickly.
Overwashing often leads to a cycle that’s hard to break. You wash aggressively because something feels irritated, the washing strips protective oils, the skin dries out or cracks, it itches more, and you wash again. This is one of the most common causes of pruritus ani, the medical term for chronic anal itching. The skin can become red, swollen, or develop small fissures from repeated friction and dryness.
Moisture left behind after washing creates its own problems. Damp skin in the perianal area is a breeding ground for fungal infections like tinea and a condition called intertrigo, where skin folds stay wet and become inflamed. If you wash, you need to dry thoroughly afterward.
How to Wash Properly
Warm water alone is the gold standard. Colorectal specialists consistently recommend cleaning the anal area with water and no chemicals. If you want to use a cleanser, choose something fragrance-free and pH-balanced. Regular bar soap tends to have a much higher pH than your skin, which strips oils and causes dryness and irritation. You should never use scented soaps, body washes with fragrances, or antibacterial products on this area.
Technique matters as much as what you use. Gentle wiping or rinsing is all you need. Scrubbing hard enough to feel “really clean” is scrubbing hard enough to damage your skin. When drying, pat the area with a soft towel rather than rubbing. Air drying works well too. Some people use a hair dryer on a low heat setting, which colorectal specialists have specifically endorsed as a good option.
Bidets vs. Toilet Paper vs. Wipes
Between bathroom visits, how you clean after a bowel movement affects how much washing your skin actually needs. A 2022 study from Sanyo-Onoda City University in Japan found that bidet users had seven to ten times fewer bacteria on their hands compared to people who used only toilet paper. As one hygiene researcher put it, wiping with toilet paper may look clean to the naked eye, but at a microscopic level, it’s not. Rinsing with water is significantly more effective.
Toilet paper also creates friction. Repeated wiping, especially when stool is soft or sticky, can irritate the delicate perianal skin and cause swelling, itching, or burning. A bidet reduces both the bacterial load and the physical abrasion. If you don’t have a bidet, a portable squeeze bottle works as a simple alternative.
Flushable wipes seem like a middle ground, but they come with a hidden risk. Many popular wipe brands contain a preservative called methylisothiazolinone, which has become one of the more common causes of allergic skin reactions. A survey of personal care products at major retailers found this chemical in 14 out of 39 facial or body wipe products. The reaction doesn’t always show up immediately, which makes it easy to blame something else. Colorectal health guidelines are blunt on this point: anal or intimate wipes will trigger or worsen anal itching. If you currently use wipes and have any irritation, switching to water is the first thing to try.
Adjustments for Hemorrhoids or Fissures
If you’re dealing with hemorrhoids, anal fissures, or any active irritation, the rules tighten. Published anal health care guidelines recommend water only, with no soap or chemical cleansers of any kind. Cleaning should be minimal, and you should avoid wiping or rubbing entirely. Pat dry, air dry, or use a low-heat blow dryer. Wipes are specifically discouraged, even the ones marketed as “gentle” or “sensitive.”
This isn’t just about comfort. Broken or inflamed skin absorbs chemicals more readily, so even mild cleansers that don’t bother healthy skin can cause stinging, further irritation, or allergic reactions on damaged tissue. Sticking to water until the area heals gives your skin the best chance to recover without interference.
Signs You’re Cleaning Too Much or Too Little
Persistent itching, redness, dry or flaky skin, or small cracks around the anus are classic signs of overcleaning. Many people assume these symptoms mean they need to clean more, which makes the problem worse. If you’re experiencing this, scale back to once-daily water-only washing and see if it resolves over a week or two.
Undercleaning is less common but shows up as lingering odor, skin irritation from prolonged contact with fecal residue, or occasional infections. If you sweat heavily, exercise frequently, or live in a hot climate, your daily wash becomes more important, and rinsing after bowel movements is worth the extra effort. The key principle is simple: clean enough to remove what shouldn’t be there, gently enough to leave the skin’s own defenses intact.