"Can excessive sweating under the arms lead to body odor (狐臭)?"

Axillary Sweat and Body Odor

While axillary (underarm) sweating can potentially lead to body odor, not all individuals who experience axillary sweating will develop body odor. Axillary sweating can be triggered by physiological factors such as hot weather and intense physical activity, or it can stem from pathological conditions like hyperhidrosis, diabetes, and hyperthyroidism.

Physiological Factors:

1. Hot Weather: If the weather is hot, it can cause the body to sweat profusely. In such cases, there is generally no odor, and the underarms do not smell.
2. Intense Physical Activity: Engaging in rigorous activities like running or playing basketball can lead to increased underarm sweating, causing a localized acidic sensation but not necessarily odor.

Pathological Factors:

1. Hyperhidrosis: If a person suffers from hyperhidrosis, it can result in increased axillary sweating accompanied by skin flushing. Treatment options under medical supervision include medications like chlorpromazine and oryzanol.
2. Diabetes: Diabetes patients may experience elevated blood sugar levels, affecting sweat gland function and leading to increased axillary sweating. Management involves administering antidiabetic medications such as metformin and acarbose.
3. Hyperthyroidism: This condition accelerates metabolism, causing excessive sweating. Antithyroid medications like methimazole and propylthiouracil are prescribed for treatment.
4. Other Diseases: Conditions like tuberculosis and liver cirrhosis can also cause increased axillary sweating during episodes. Treatment is tailored to the specific diagnosis, with tuberculosis patients prescribed antitubercular drugs like rifampicin and isoniazid.

It is recommended that patients promptly consult with a general physician and undergo blood and urine tests for accurate diagnosis. Maintaining personal hygiene through regular bathing and changing clothes is crucial in daily life.