What causes excessive underarm sweating?
May 16, 2022
Source: Cainiu Health
Dr. Liu Wan
Introduction
Excessive underarm sweating may be related to individual physiological differences, acquired medical conditions, or hot, humid environments. Because the underarms contain a high density of sweat glands, they serve as the primary source of underarm perspiration. Moreover, from a genetic perspective, there are significant individual variations in both sweat gland density and secretory function. Certain conditions—such as hyperthyroidism—can also stimulate increased sweat production by the underarm sweat glands.
Some individuals frequently experience excessive underarm sweating after exercise—sometimes to a pronounced degree—leaving them particularly puzzled. What causes excessive underarm sweating?
What Causes Excessive Underarm Sweating?
Excessive underarm sweating may stem from individual physiological differences, acquired medical conditions, or hot, humid environmental conditions. The axillae (underarms) contain a high density of sweat glands, which serve as the primary source of underarm perspiration. Moreover, genetically determined variations exist among individuals in both sweat gland density and secretory function. Certain medical conditions—such as hyperthyroidism—can also stimulate increased sweat production by the axillary glands.
Treatment options for excessive underarm sweating include oral medications, topical agents, injectable therapies, and surgical interventions. Oral treatment primarily involves anticholinergic drugs—such as atropine—or sedatives like diazepam; however, potential adverse drug reactions must be carefully monitored. Topical astringent antiperspirants—including dilute formalin solution, methenamine solution, aluminum acetate solution, and alum solution—may also be applied locally to suppress sweat gland activity. A newer therapeutic approach involves localized botulinum toxin injections, which can significantly reduce focal hyperhidrosis; however, repeat injections are typically required every few months. In severe, refractory cases, surgical removal or ablation of the axillary sweat glands may be considered, leading to marked improvement in underarm sweating.
In daily life, prioritize adequate rest and avoid overexertion; ensure sufficient sleep duration. Maintain a light, easily digestible diet, minimizing intake of greasy or spicy, irritating foods. Increase consumption of fresh fruits and vegetables rich in vitamins. We hope this information proves helpful to you!
