Is it normal to feel nervous and sweat under the armpits?

Generally speaking, whether underarm sweating during nervousness is normal depends on the degree of sweating, accompanying symptoms, and whether it affects daily life. If there are severe discomforts or abnormal manifestations, it is recommended to seek medical attention promptly. The detailed analysis is as follows:

When a person is nervous, heightened nerve activity stimulates sweat glands. Since the underarm area contains abundant sweat glands, mild sweating may occur. This type of sweating is typically odorless, does not cause skin itching or redness, resolves quickly after the stress subsides, and does not interfere with daily work or social activities. In such cases, there is no need for concern, as this represents a normal physiological stress response.

However, if underarm sweating becomes excessive when nervous—soaking through clothing noticeably—accompanied by strong body odor, or symptoms such as red rashes, itching, or peeling skin; and if these episodes occur frequently, significantly disrupt interpersonal interactions, work, or study, and even lead to feelings of inferiority or anxiety, then this is considered abnormal. It may indicate hyperhidrosis or localized skin conditions.

For daily care, maintain clean and dry underarms by washing daily with lukewarm water and wiping away sweat promptly. Wear breathable, sweat-absorbing fabrics such as cotton, and avoid tight, non-breathable materials. Limit intake of spicy and stimulating foods, maintain regular sleep patterns, and avoid excessive fatigue. If abnormal sweating occurs, try deep breathing or relaxation techniques to reduce nervousness. Consult a doctor when necessary.