Why Do People Develop Axillary Odor?
Apr 18, 2022
Source: Cainiu Health
Dr. Gan Liqiang
Introduction
Axillary osmidrosis (body odor) typically occurs in adolescent females and is characterized by a distinctive, pungent odor—reminiscent of hydrogen sulfide and ammonia—emanating from the axillae (armpits), which intensifies during summer. During puberty, excessive hormonal secretion and heightened metabolic activity stimulate increased sweat gland activity in the axillae, resulting in greater perspiration. Compensatory hyperplasia of the sweat glands may occur. Subsequently, sebaceous glands, sweat glands, and sweat are oxidized by air within the hair follicles, generating volatile compounds—including hydrogen sulfide and ammonia—that produce a noticeable, close-range odor.
Many women experience axillary osmidrosis (commonly known as “fox odor”) in daily life, which can cause considerable distress in both personal and academic settings—and severely impact psychological well-being. So, what causes axillary osmidrosis?
What Causes Axillary Osmidrosis?
Axillary osmidrosis typically emerges during puberty in females. It is characterized by a distinctive, pungent odor—reminiscent of hydrogen sulfide and ammonia—emanating from the underarms, which intensifies during summer months. During puberty, excessive hormonal secretion and heightened metabolic activity stimulate increased sweat gland activity in the axillae, resulting in greater perspiration. Compensatory hyperplasia of apocrine glands occurs, and when secretions from apocrine and sebaceous glands mix with sweat and undergo oxidation by air within hair follicles, volatile compounds such as hydrogen sulfide and ammonia are generated, producing a noticeable odor at close range. Maintaining local hygiene and avoiding irritants usually suffices for mild cases, requiring no specific treatment; however, severe cases may warrant surgical ablation of the affected sweat glands.
Additionally, individuals with axillary osmidrosis should avoid spicy, greasy, and low-protein foods. Specifically, they should refrain from consuming strongly flavored or pungent foods—including onions, garlic, chili peppers, and sulfur-containing compounds. Excessively oily diets should also be limited. While protein intake should not be overly restricted, excessive consumption of red meats (e.g., pork, beef, and mutton) should be avoided. Instead, individuals with axillary osmidrosis are advised to reduce red meat intake and opt more frequently for lean white meats—such as poultry and fish.
Lastly, individuals experiencing symptoms should seek prompt medical evaluation at a healthcare facility and follow their physician’s recommendations for appropriate management. We hope this information proves helpful!
