Why Body Odour Is Everyone’s Business

Body odour is one of those subjects that everyone notices, but few people discuss openly. That silence is precisely the problem. Across the world, public health researchers have begun to pay closer attention to hygiene. They no longer see it as a matter of personal comfort alone but as a social determinant of how people are treated, employed, and included in daily life. A person’s smell can open doors, and it can also quietly close them. In many workplaces, schools, and public transport systems around the globe, body odour has become an unspoken factor in how people are judged, whether fairly or not.

The science behind body odour is not complicated. Sweat itself, produced by eccrine and apocrine glands, is largely odourless when it leaves the skin. The smell is triggered when bacteria on the skin’s surface break down the proteins and fatty acids present in sweat. This is often in areas, such as the groin and armpits, where apocrine glands are concentrated. Hormonal changes, medications, underlying health conditions, and diet can all influence the intensity of body odour. However, for most people, the primary driver is simply inadequate hygiene, which is worsened by the tropical climates in which many of us live.

Now, this is where the global conversation becomes deeply relevant to Africa. The continent’s climate is characterised by high humidity and heat across much of the year. These conditions accelerate bacterial growth on skin far more than in temperate regions. A person going about ordinary business in Lagos, Accra or Nairobi will naturally sweat considerably more than someone doing the same activities in London or Toronto. This is not a moral failing. It is basic physiology responding to the environment. This means people living in hot climates carry a heavier responsibility to manage their hygiene proactively.

In Nigeria, the issue takes on a more complex nature. Many people spend long hours commuting in crowded buses and tricycles in temperatures often exceeding 30 degrees. Add to this the physical nature of much daily work, from market trading to construction to okada riding, and it becomes clear why body odour is such a persistent feature of public life here. The irony is that Nigeria is also a country deeply invested in appearance and presentation. People take enormous care over their clothing, hairstyles, and jewellery, yet sometimes overlook the more fundamental element of how they smell. A beautifully tailored native attire or a sharply pressed shirt loses much of its impact if the wearer has not addressed the odour beneath it.

Part of the problem is the cultural discomfort in raising the subject. Nigerians, like many people elsewhere, find it awkward and even insulting to tell a colleague, a friend, or a family member that they have a problem with body odour. This reluctance means that many people go years without receiving honest feedback. Some genuinely do not realise how they smell to others, because our own noses become desensitised to our own scent over time. This is why personal responsibility matters so much here. Waiting for someone else to tell you is not reliable, since most people will simply avoid you rather than confront you.

Taking charge of one’s own hygiene begins with consistent daily washing, using soap that actually cleans rather than merely leaves a pleasant scent behind. Antibacterial soaps can be helpful because they target the bacteria responsible for odour rather than simply masking the smell. Washing should focus on the armpits, groin, feet, and any skin folds, as these areas harbour the most bacteria. Drying properly afterwards is also essential, as damp skin left in clothing lets bacteria multiply rapidly.

Now, deodorants and antiperspirants play a useful supporting role here. However, they are not substitutes for bathing or washing well. A deodorant applied to unwashed skin simply adds fragrance to an existing foul smell rather than solving a problem. For those who sweat heavily, applying antiperspirant at night can help, since sweat glands are less active then. Dermatologists note that this allows the product to be more effective than a rushed morning application.

Clothing choices matter too. Synthetic fabrics do not breathe and so trap moisture against the skin, thus worsening odour. Wearing the same shirt or underwear for days, whether as a necessity or carelessness, allows bacteria more time to build up in the fabric. Washing clothes properly and drying them fully in sunlight, where possible, eliminates bacteria that survive a quick rinse.

The truth is that diet also plays a role, though it is often overstated. Foods rich in garlic, onions, and certain spices can temporarily intensify body odour. Excessive alcohol or smoking can affect how a person smells over time. Drinking enough water supports the body’s natural processes and can make a modest difference, though it is not a substitute for basic hygiene.

There is also a medical dimension worth mentioning. In a small number of cases, persistent and unusually strong body odour may point to an underlying health issue. Uncontrolled diabetes can produce a fruity, acetone-like smell as ketones build up, while kidney or liver problems can alter how a person smells in other ways. There is even a rare condition called trimethylaminuria, or fish odour syndrome, which causes a distinctive fishy smell regardless of how well a person washes. Anyone who maintains good hygiene and still struggles with severe odour should consider speaking to a doctor rather than assuming it is simply a hygiene failure.

What ties all of this together is the principle of personal responsibility. Nobody else can wash your body for you, choose your soap, or decide to change your clothes before they start smelling. Government health campaigns and public awareness programmes can certainly help by normalising conversations about hygiene and reducing the stigma around raising the subject, but the daily decisions rest entirely with each of us. This is not about shaming anyone. This is particularly so when one understands that, for some people, hygiene is constrained by circumstance rather than choice. In such situations, the problem deserves compassion and practical support rather than judgement.

Smelling clean is not vanity. In fact, it is a form of respect, both for yourself and for the people you share space with every day, whether in a crowded bus, a small office, or a family gathering. In a warm climate like ours, that respect requires little more effort than it might elsewhere. However, the effort is well within the reach of most of us. The difference it makes in how we move around and interact is far greater than we often realise.

Ojenagbon, a health communication expert and certified management trainer, lives in Lagos.