Why does my Belly Button smell?

A smelly belly button is usually caused by bacteria, dirt, and other debris accumulating in the often-difficult-to-reach folds of the navel.

Ever caught a strange odor coming from your belly button and instantly panicked, thinking, “Why does my belly button smell like that?“ You’re not alone. It might be awkward, but a smelly belly button is more common than you think. You’re probably wondering, why do belly buttons smell in the first place? It often comes down to hygiene, infections, or even hidden cysts. The good news? Most causes are treatable.

In this comprehensive guide, we’ll cover why your belly button smells, what it could mean, signs of infection, and how to clean it properly. Whether you’re experiencing a fishy smell, discharge, or just general stink, this post will answer all your questions.

 

Why Does My Belly Button Smell? 11 Possible Reasons

1. Poor Hygiene

Your belly button is a warm, moist, dark crevice — aka the perfect trap for sweat, dead skin, oils, and dirt. If not cleaned regularly, the accumulation of dirt and debris turns a dirty belly button into a breeding ground for bacteria and fungi, which explains why your belly button smells despite regular showers. In fact, if you’ve ever wondered why does belly button smell even with decent hygiene, it’s usually due to leftover moisture or unnoticed buildup in deeper navels.

2. Bacterial Infection

If your belly button smells sour or cheesy, turns red, or feels painful, it could be an infected belly button. Bacterial infections are often caused by Staphylococcus or Streptococcus and may require topical or oral antibiotics.

3. Fungal or Yeast Infection

Warm, moist environments like the belly button are ideal for Candida growth. If you notice itchiness, redness, or a musty odor, you may have a belly button yeast infection. This is more common if you have diabetes or are overweight and may appear as a yeast infection belly button condition in such cases.

Read more in our post: Everything You Need to Know About Belly Button Infections

4. Urachal Cyst

This congenital condition can cause a smelly discharge from the belly button if it becomes infected. If your belly button smells and is wet, it might be time to visit your primary care provider.

5. Sebaceous or Epidermoid Cysts

Cysts filled with keratin or sebum can rupture or drain into your belly button, causing a foul odor.

6. Piercing Infection

A belly button piercing can lead to infection if not cared for properly. Symptoms include discharge, swelling, and a strong smell.

7. Excess Sweat

If you’re working out frequently or live in a hot climate, excessive sweat can trap bacteria in your navel, leading to a smelly belly button.

8. Tight Clothing

Restrictive fabrics can trap moisture and bacteria, making it harder to clean the belly button properly.

9. Skin Conditions

Dermatitis or eczema can cause scaling, belly button crust, and foul odor.

10. Obesity

People with a higher BMI often have deeper navels that retain more moisture and debris.

11. Medical Conditions

Diabetes, immune disorders, or poor circulation can reduce your body’s ability to fight infections, increasing your risk for belly button discharge, redness, and odor.

 

What Does It Mean When Your Belly Button Stinks?

It means your navel could be struggling with:

Still asking yourself, why does my belly button stink even after regular cleaning? The answer might lie in hidden cysts, fungal buildup, or bacterial overgrowth.

• Accumulated debris and sweat 
• Bacterial or yeast infection in belly button 
• Skin irritation 
• A developing cyst 

Your belly button may also be red, crusty, itchy, or releasing pus.

 

Symptoms of a Belly Button Infection

• Redness or swelling (still wondering why is my belly button red? It might be a sign of infection or irritation) 
• Foul smell 
• Discharge (white, yellow, green, or bloody) 
• Itchiness (an itchy belly button is often a sign of irritation, infection, or yeast buildup) 
• Pain or burning 

Some people may also experience fever or general malaise. This could be a sign of a more serious infection. In rare cases, a belly button infection can lead to sepsis.

Read our full article on Can a Belly Button Infection Kill You?

 

How to Clean Your Belly Button

Cleaning your navel regularly is essential not just for hygiene but also for preventing infections and odor. Here’s how to clean belly button properly, whether you have an innie or outie.

Daily Hygiene:

• Use warm water and mild soap during showers. 
• Gently scrub using a washcloth or cotton swab. 
• Pat dry to avoid moisture buildup. 
• Avoid applying lotion or cream directly in the navel. 

Deep Cleaning:

• Use salt water (1 tsp salt in 1 cup warm water) with a cotton swab. 
• Dry thoroughly with a clean towel. 

Still confused how to wash belly button? Want a visual guide? Check out our infographic: How to Clean an Infected Belly Button at Home.

 

Treatment for Smelly Belly Button

If you’re wondering how to get rid of bad smell in belly button, the right treatment depends on the root cause—whether it’s hygiene-related or due to infection.

• Topical antibiotics for bacterial infections 
• Antifungal creams or powders for yeast infections 
• Proper hygiene to prevent recurrence 
• Drainage or removal if cysts are present 
• Avoid tight clothing and keep the area dry 

 

When to See a Doctor

Visit your doctor if:

• Odor persists after cleaning 
• There is visible discharge or swelling 
• You experience pain or fever 

Your Primary Care physician at Manhattan Medical Arts can help diagnose and treat all belly button issues.

📞 Call us at 646-454-9000 to book your appointment today.

 

FAQs about Why Does My Belly Button Smell

 

Final Thoughts

While a smelly belly button may seem minor, it can sometimes point to a deeper issue. Practicing good hygiene, recognizing warning signs, and seeking Primary Care can keep your navel clean, fresh, and infection-free.

Sources

Scielo: Prevalence of Candida albicans and non-albicans

CDC.Gov: Body odour. (2021)

CDC.gov: Hygiene basics. (2025)

NHS.uk : Infected piercings. (2023)

Mogilnicka I, Bogucki P, Ufnal M. Microbiota and malodor-etiology and management. Int J Mol Sci. 2020;21(8):2886. doi:10.3390/ijms21082886

Gardani M, Palli D, Simonacci F, Grieco MP, Bertozzi N, Raposio E. Umbilical reconstruction: different techniques, a single aim. Acta Biomed. 2019;90(4):504-509.

Metin A, Dilek N, Bilgili SG. Recurrent candidal intertrigo: Challenges and solutions. Clin Cosmet Investig Dermatol. 2018;11:175-185. doi:10.2147/CCID.S127841

Li B, Kamarck ML, Peng Q, et al. From musk to body odor: Decoding olfaction through genetic variation. PLoS Genet. 2022;18(2):e1009564. doi:10.1371/journal.pgen

MedlinePlus. Skin infections.

Shah S, Donze-Reiner T, Shah V. Diversity of navel microbiome in young adults. J Med Microbiol. 2020;69(5):721-727. doi:10.1099/jmm.0.001192

Palaniappan V, Sadhasivamohan A, Kaliaperumal K. Dermatosis neglecta: A retrospective study at a tertiary care center in Southern India. Indian J Dermatol. 2023;68(6):628-633. doi:10.4103/ijd.ijd_705_22

Akhmetova A, Saliev T, Allan IU, Illsley MJ, Nurgozhin T, Mikhalovsky S. A comprehensive review of topical odor-controlling treatment options for chronic wounds. J Wound Ostomy Continence Nurs. 2016;43(6):598-609. doi:10.1097/WON.0000000000000273

Preslar D, Borger J. Body piercing infections. In: StatPearls. StatPearls Publishing; 2023.

R AN, Rafiq NB. Candidiasis. In: StatPearls. StatPearls Publishing; 2023.

Shan T, Lung-Huang L, Shih-Pin H. An infected urachal cyst presenting as acute abdominal pain in a child. Medicine. 2020;99(5):e18884. doi:10.1097/MD.0000000000018884

Jayakumar S, Darlington D. Acute presentation of urachal cyst: A case report. Cureus. 2020;12(5):e8220. doi:10.7759/cureus.8220

Mushtaq S. Omphalolith: A nugget in the navel. Indian Dermatol Online J. 2020;12(1):201-202. doi:10.4103/idoj.IDOJ_537_19

Jouini W, Litaiem N, Zaimi Y, Mouelhi L, Debbeche R, Zeglaoui F. Omphalolith: An underdiagnosed entity. Clin Case Rep. 2022;10(10):e6443. doi:10.1002/ccr3.6443

Mihara K. Omphalolith: An umbilical concretion to recognize. J Gen Intern Med. 2016;31(11):1396. doi:10.1007/s11606-016-3708-0

Centers for Disease Control and Prevention. Candidiasis basics.

Centers for Disease Control and Prevention. Preventing and treating skin infections.

Kwok CM. Infected urachal cyst in an adult: A laparascopic approach. Case Rep Gastroenterol. 2016;10(1):269–274. doi:10.1159/000446642

Jouini W, Litaiem N, Zaimi Y, Mouelhi L, Debbeche R, Zeglaoui F. Omphalolith: An underdiagnosed entity. Clin Case Rep. 2022;10(10):e6443. doi:10.1002/ccr3.6443

American Academy of Dermatology Association. Nickel allergy: How to avoid exposure and reduce symptoms.

Association of Professional Piercers. Suggested aftercare for body piercings.

American Academy of Dermatology. Is your workout causing your acne?.

Twumwaa H, Asumang B, Imoro ZA, Kpordze SW. Toothbrush and towel handling and their microbial quality: The case of students of university for development studies, Nyankpala campus, Ghana. Afr J Infect Dis. 2020;15(1):41-46. doi:10.21010/ajid.v15i1.5

Centers for Disease Control and Prevention. Preventing swimming-related illnesses.

 

Disclaimer
This blog is for informational & educational purposes only, and does not intend to substitute any professional medical advice or consultation. For any health related concerns, please consult with your physician, or call 911.