Occasionally smelling body odor, but not being able to detect it upon closer inspection, can be related to various factors. This phenomenon may be due to subjective differences in body odor perception. For example, when under stress or fatigue, the body may release more sweat. While sweat itself is odorless, it produces a distinctive odor when it comes into contact with bacteria on the skin's surface. Environmental factors such as air odors and food smells can also influence an individual's perception of odors.

Another possibility is related to psychological factors. For example, anxiety or stress may make an individual more sensitive to certain odors, thus creating the illusion of smelling body odor. This phenomenon is known in psychology as sensory abnormality, and it may be more pronounced in specific situations, such as in crowded places or after exercise.

If this phenomenon is accompanied by skin lesions, abnormal discharge, or other physical discomfort, it is necessary to seek medical attention promptly to rule out underlying health problems. A common misconception is that all abnormal body odor is bromhidrosis (body odor). In reality, body odor is related to many factors, including diet, lifestyle habits, and personal hygiene.
[Prevention Tips:]
1. Maintain good personal hygiene habits and wash your body regularly, especially areas prone to odor such as the armpits.
2. Pay attention to a healthy diet, reduce the intake of spicy and irritating foods, and eat more fresh vegetables and fruits.
3. Wear breathable clothing and avoid wearing the same clothes for a long time to reduce the accumulation of sweat on the skin surface.
4. Maintain a cheerful mood and avoid excessive anxiety and stress. You can relieve psychological stress through exercise, meditation and other methods.