You smell like onions because skin bacteria break down sweat (especially from apocrine glands in armpits/groin) into smelly compounds, and diet (sulfur-rich foods like garlic/onions/ broccoli), stress sweat, hormones (puberty/menopause/periods), dehydration, certain medications, and sometimes underlying conditions like diabetes can intensify this sulfurous odor, releasing it through your skin even without eating onions.
Medical Factors. Sometimes, the root of your onion-like body odor goes deeper than diet and sweat. Certain health conditions, like metabolic disorders (ketoacidosis), can alter your body's fragrance. Similarly, medications for various conditions can have side effects, including body odor changes.
Phantosmia refers to detecting smells that aren't really there. It's a symptom of many common conditions, including allergies, colds and upper respiratory infections. It could also indicate a brain-related condition, including epilepsy, stroke or Alzheimer's disease.
Bromhidrosis, also known as osmidrosis or ozochrotia, is an unpleasant or offensive body odour due to any cause including poor hygiene, infections, diet or medications, or inherited metabolic disorders. It may be associated with hyperhidrosis.
Your body hosts all kinds of bacteria, and some love to munch on the sweat we produce. These tiny organisms feed on the proteins and fatty acids in your sweat, and as they break them down, they can create an armpit smell like onions.
HOW TO STOP SWEAT FROM SMELLING LIKE ONIONS
Diabetes: Diabetes is one of the most well-known health conditions linked to changes in body odor. People with uncontrolled diabetes can experience a fruity or acetone-like smell (think nail polish remover) on their breath or skin.
A strong onion smelling vaginal odor accompanied by a thick yellow discharge can generally indicate a Sexually Transmitted Infection (STI) like Trichomoniasis, Gonorrhea, or Chlamydia. Symptoms may also include vaginal itching and discomfort during urination.
3-methyl-3-sulfanylhexan-1-ol (3M3SH) is a thioalcohol, produced by Staphylococcus hominis, which makes the underarms smell like rotten onions or meat.
An onion-like vaginal odour is not typical and may indicate a sexually transmitted infection (STI). While all vaginas have a natural scent that can vary due to hormones, sexual arousal, menstruation, or pregnancy, lifestyle factors like diet and exercise can also impact vaginal odour.
Ten early signs of diabetes include increased thirst/urination, extreme hunger, fatigue, blurred vision, slow-healing sores, tingling in hands/feet, frequent infections (skin, gum, vaginal), unexplained weight loss (often Type 1), dry mouth/skin, and dark skin patches (acanthosis nigricans), with symptoms varying by type, emphasizing the need for regular checkups.
In the case of liver or kidney disease, your odor may give off a bleach-like smell due to toxin buildup in your body.
We get it — it's a common problem, but sometimes it can make you self-conscious (“wait, can other people smell that, too?!”) and affect your confidence. Inner thigh odor is caused by various factors, including excessive sweating, fungal infections, poor hygiene, and hormonal changes.
Bromhidrosis is a medical condition characterized by an abnormally offensive body odor (B.O) that often reminds of onions or sulfur. The odor results from the interaction between sweat and skin bacteria, particularly when sweat contains high levels of lipids and proteins.
Some women describe their menopause body odour as smelling like urine, and even cat pee, which could be caused by excess ammonia due to increased amounts of apocrine sweat. Aside from body odour, you may also experience 'phantom smells', such as smoke.
The smell of most types of onions can stay on your skin long after cutting or crushing them, any time from an hour to two days. Your body needs to metabolize the compounds for the smell to go away by itself.
A strong vaginal odor may be a sign of vaginitis, or it may be a temporary smell related to your hygiene, lifestyle or other changes. Take note of whether you have other symptoms. If the odor is related to an infection, you'll usually notice other changes, like vaginal itching, burning and discharge.
Sweating and body odor most often affect the underarm and groin areas, the palms, the bottom of the feet, and the head, face and scalp. It's common for some people to sweat more or less than other people. Body odor also can vary from person to person. It might smell tangy, oniony, sour or some other strong odor.
Poor digestion can cause an imbalance in the bacteria in our gut, causing them to work harder and produce more incomplete byproducts. The body has a harder time dealing with these and will allow them to be released through skin pores. Step one is chewing your food in order to break it down as best you can.
If your kidneys aren't working properly, you may notice one or more of the following signs:
Stay Hydrated
Water helps flush out toxins and waste products from your body, allowing your kidneys to function more efficiently. Aim to drink at least 8-10 glasses of water daily, and consider increasing your intake if you're active or live in a hot climate.
What does fetor hepaticus smell like? Healthcare providers who recognize the smell of fetor hepaticus have described it as musty, pungent, oddly sweet and occasionally fecal (poop-like).
Symptoms of hyperglycaemia
Digital sclerosis: Some people with Type 1 diabetes develop hardened, thick, waxy skin on the backs of their hands. The finger joints stiffen, making movement difficult.
Fasting blood glucose test
This is a blood test that measures blood sugar levels after fasting. If your fasting blood sugar level is between 100 mg/dL and 125 mg/dL, it's an indication that you're prediabetic.