You should clean your belly button at least once a week, though daily cleaning is perfectly safe as long as you’re gentle. Most people forget about their navel entirely during showers, which allows dead skin, oils, sweat, lint, and bacteria to quietly accumulate in that small, warm fold of skin.
Why Once a Week Is the Minimum
Your belly button is one of the most microbe-dense spots on your body. A study from North Carolina State University that swabbed 60 navels found a median of 67 distinct bacterial types per person, with 2,368 total bacterial types identified across all participants. The researchers even discovered archaea, a type of microorganism typically associated with extreme environments like deep-sea vents. None of this is necessarily harmful. Most of these organisms are part of your normal skin flora. But when dead skin cells, sebum, and lint pile up in that dark, moist pocket, they create conditions where odor and infection can develop.
Weekly cleaning prevents that buildup from reaching a noticeable level. If you have a deep innie, sweat heavily, or exercise frequently, cleaning every couple of days or even daily is a better target. There’s no harm in making it a daily habit as part of your shower routine, as long as you aren’t scrubbing aggressively or using harsh products that irritate the skin.
How to Clean It Properly
The technique matters more than the frequency. For most people, the simplest approach works best: in the shower, lather a mild soap on your fingertip or a soft washcloth and gently work it into the folds of your navel. Rinse thoroughly and pat the area dry afterward. Leaving moisture trapped inside creates the exact warm, damp environment that encourages bacterial and fungal growth.
If your belly button is particularly deep or tight, a cotton swab dipped in warm soapy water can reach areas your finger can’t. Rotate the swab gently against the inner walls, rinse with clean water, then use a dry cotton swab or the corner of a towel to absorb any remaining moisture. Avoid using rubbing alcohol or hydrogen peroxide for routine cleaning. These can strip away healthy skin oils and irritate the delicate tissue inside the navel, leading to dryness, cracking, or contact dermatitis.
What Happens When You Skip It
The most common consequence of neglecting your belly button is a mild odor caused by bacteria breaking down trapped sweat, oil, and dead skin. That’s usually harmless and resolves quickly once you start cleaning regularly. But longer-term neglect can lead to more significant problems.
A yeast infection in the navel typically shows up as a bright red rash in the skin folds, often intensely itchy and sometimes accompanied by a burning sensation. You may notice scaling, swelling, or a white discharge. A musty smell can develop if the infection involves intertrigo, a condition where skin-on-skin contact traps moisture.
In rare cases, prolonged neglect leads to an omphalolith, sometimes called a navel stone. This is a hard, dark mass that forms when sebum and dead skin cells (keratin) accumulate and compact over months or years inside the umbilicus. Poor hygiene is the primary risk factor, and people with deep, retracted belly buttons are more susceptible. Navel stones are uncommon but underdiagnosed, partly because people don’t think to check. They can sometimes be mistaken for a more serious growth before a doctor identifies what they actually are.
Belly Button Piercings Need Extra Attention
A new navel piercing changes the cleaning equation significantly. During the healing period, which typically takes six months to a year for navel piercings, the Association of Professional Piercers recommends spraying the site with sterile saline wound wash regularly. Avoid rotating the jewelry, submerging the piercing in pools or hot tubs, or applying ointments that can trap bacteria against the wound.
Once the piercing is fully healed, clean it as part of your normal hygiene routine. Healed piercings can still accumulate normal secretions around the jewelry that may develop an odor if ignored. The jewelry may not move freely once healing is complete, and forcing it can reinjure the tissue.
Signs Something Is Wrong
Normal belly button grime is gray or brown lint mixed with skin oils. It rinses away easily and doesn’t cause symptoms beyond a mild smell. What’s not normal: persistent redness, swelling, pain or tenderness when touched, discharge that’s yellow or green, or a rash that spreads beyond the navel. These can signal a bacterial or yeast infection that needs treatment. Crusty buildup that feels unusually hard or won’t come loose with gentle cleaning could be a developing navel stone worth having a doctor examine.
People with diabetes, those who are immunocompromised, or anyone with recent abdominal surgery should be especially attentive to navel hygiene, since these factors increase susceptibility to skin infections in moist body folds.