The secretory clear cell of the eccrine sweat gland as the probable source of excess sweat production in hyperhidrosis Letter uri icon


MeSH Major

  • Eccrine Glands
  • Epithelial Cells
  • Hyperhidrosis
  • Sweat


  • Primary hyperhidrosis is characterized by excessive sweating in palmar, plantar and axillary body regions. Gland hypertrophy and the existence of a third type of sweat gland, the apoeccrine gland, with high fluid transporting capabilities have been suggested as possible causes. This study investigated whether sweat glands were hypertrophied in axillary hyperhidrotic patients and if mechanisms associated with fluid transport were found in all types of axillary sweat glands. The occurrence of apoeccrine sweat glands was also investigated. Axillary skin biopsies from control and hyperhidrosis patients were examined using immunohistochemistry, image analysis and immunofluorescence microscopy. Results showed that glands were not hypertrophied and that only the clear cells in the eccrine glands expressed proteins associated with fluid transport. There was no evidence of the presence of apoeccrine glands in the tissues investigated. Preliminary findings suggest the eccrine gland secretory clear cell as the main source of fluid transport in hyperhidrosis.

publication date

  • December 2011



  • Letter


Digital Object Identifier (DOI)

  • 10.1111/j.1600-0625.2011.01361.x

PubMed ID

  • 21995840

Additional Document Info

start page

  • 1017

end page

  • 20


  • 20


  • 12