While no major autoimmune diseases directly cause foul body odor as a primary symptom, related issues like Trimethylaminuria (TMAU), a metabolic disorder often secondary to gut dysfunction (influenced by immunity/inflammation), can cause a "fishy" smell, and conditions like Sjögren's or Lupus might indirectly affect it via altered sweat/kidney/liver function or secondary infections, leading to strong odors (bleach, fruity, etc.). Poor hygiene, medications, and dietary changes associated with managing autoimmune conditions can also worsen odor.
Trimethylaminuria is a disorder in which the body is unable to break down trimethylamine, a chemical compound that has a pungent odor.
Estrogen and progesterone levels fall relative to your testosterone, while cortisol tends to increase. Higher levels of both testosterone and cortisol have been linked to stronger body odor.
Several studies demonstrate that inflammation affects body odor. Volatile signals associated with inflammation induced by pyrogens like LPS are detectable both by conspecifics and chemical analyses.
In the case of liver or kidney disease, your odor may give off a bleach-like smell due to toxin buildup in your body.
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).
If your kidneys aren't working properly, you may notice one or more of the following signs:
Bromhidrosis (also referred to as osmidrosis, bromidrosis, or body odor) is a common phenomenon in postpubertal individuals. It is a chronic condition in which excessive odor, usually an unpleasant one, emanates from the skin.
Without enough B12, your metabolism can slow down, leading to more odor-causing byproducts being released through your sweat. Plus, B12 helps maintain healthy skin, which acts as a barrier to bacteria that cause bad smells. You can find B12 in foods like meat, eggs, and dairy, or through supplements.
Some people with inflammatory bowel disease (IBD) may also have too much bacteria growing in the wrong part of their gut, a condition called small intestinal bacterial overgrowth (SIBO), which can cause extra gas and stronger smells.
The menopausal drop in estrogen also leaves our bodies with relatively higher levels of testosterone — produced by our ovaries in small amounts — than before. This can attract more bacteria to sweat, making it smell funkier.
Here are 10 of the warning symptoms to look out for:
If you notice a significant difference in your body odor, talk with a medical professional. Infection: Certain infections, such as bacterial or fungal infections of the skin can cause a foul odor. These infections can disrupt the normal balance of bacteria on the skin, leading to a strong, unpleasant smell.
A person with kidney failure may have breath that smells like ammonia or urine. Serious liver disease can make breath smell musty or like garlic and rotten eggs. Compounds that are transported through the blood can also be released through your sweat glands. That can make your armpits and skin smell bad.
Three key signs of Sjögren's syndrome are dry eyes, dry mouth, and profound fatigue, stemming from this autoimmune condition attacking moisture-producing glands, though other symptoms like joint pain, swollen glands, and systemic issues can also occur.
A urine test is used to diagnose trimethylaminuria. The person's urine is tested to look for higher levels of trimethylamine.
Your body needs magnesium to function normally. Symptoms of magnesium deficiency include low appetite, nausea or vomiting, muscle spasms or tremors and abnormal heart rhythms. A blood test or urine test can be used to diagnose magnesium deficiency. Magnesium deficiency is usually treated with supplements.
Trimethylaminuria (TMAU), sometimes known as “Fish-Odor Syndrome,” is a genetically transmitted metabolic disorder. The main symptom of TMAU is a foul-smelling body odor. The odor can smell like fish in some patients and like garbage in others. Some people with TMAU have a strong odor all the time.
While magnesium deficiency doesn't exactly result in you acquiring bad odor having the proper amount of magnesium intake can help your body eliminate odors more effectively. A simple blood test can detect a vitamin deficiency, and you can make changes to your diet to correct the deficiency.
While eccrine sweat glands are present in all skin types on the body, apocrine and sebaceous are restricted to certain locations. Body odor is primarily caused by apocrine sweat glands that become activated during puberty.
Hyperhidrosis: Hyperhidrosis causes excessive sweating from the eccrine glands. If someone sweats a lot, sweat may buildup on the skin and interact with bacteria. This may cause an odor, which may smell of ammonia.
Sometimes, despite regular showers and deodorant, body odor sticks around. This could be due to diet (like eating spicy foods, garlic, or onions), stress sweat that mixes with bacteria, hormonal changes during puberty or menopause, or even medical conditions like diabetes or hyperhidrosis.
Generally, earlier stages are known as 1 to 3. And as kidney disease progresses, you may notice the following symptoms. Nausea and vomiting, muscle cramps, loss of appetite, swelling via feet and ankles, dry, itchy skin, shortness of breath, trouble sleeping, urinating either too much or too little.
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.
In stage 3 kidney disease, urine might be darker, like dark yellow or amber. It could even look brown or tea-colored because of waste buildup.