The body has its own chemical language. Sometimes, unusual odours are part of that communication.
A sweet or fruity smell can happen in people with poorly controlled diabetes. This occurs when the body starts breaking down fat rapidly, producing chemicals called ketones. In severe cases, this may signal diabetic ketoacidosis, a potentially dangerous condition requiring immediate medical attention.
An ammonia-like smell may appear during dehydration because concentrated sweat contains more waste products. High-protein diets can also contribute to this. In some cases, kidney problems may be involved.
“An ammonia-like smell may occur with dehydration, a very high-protein diet, or occasionally due to kidney-related problems,” says Dr Tayal.
There are also rare conditions that dramatically alter body odour. Trimethylaminuria, commonly called “fish odour syndrome,” causes the body to release a strong fishy smell due to the inability to break down certain compounds properly.
Liver disease may sometimes produce a musty smell, while advanced kidney disease can create a urine-like odour. Though uncommon, these odours can become important diagnostic clues when combined with fatigue, swelling, weight loss, or fever.
