CausesBy Mayo Clinic staff
Jock itch is caused by a type of fungus that can be spread from person to person or from shared use of contaminated towels or clothing. Jock itch is often caused by the same fungus that results in athlete's foot. It's common for the infection to spread from the feet to the groin, as the fungus can travel on your hands or on a towel.
The organisms that cause jock itch thrive in damp, close environments. You're at greater risk of jock itch if you:
- Are a man
- Wear tight underwear
- Are overweight
- Sweat heavily
- Have a weakened immune system
- Have other skin conditions
- Dermatophytes. Centers for Disease Control and Prevention. http://www.cdc.gov/fungal/dermatophytes. Accessed May 24, 2013.
- Goldsmith LA, et al., eds. Fitzpatrick's Dermatology in General Medicine. 8th ed. New York, N.Y.: The McGraw-Hill Companies; 2012. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=740. Accessed May 24, 2013.
- Goldstein AO, et al. Dermatophyte (tinea) infections. http://www.uptodate.com/home. Accessed May 24, 2013.
- Habif TP. Clinical Dermatology: A Color Guide to Diagnosis and Therapy. 5th ed. Edinburgh, U.K.; New York, N.Y.: Mosby Elsevier; 2010. http://www.mdconsult.com/books/about.do?about=true&eid=4-u1.0-B978-0-7234-3541-9..X0001-6--TOP&isbn=978-0-7234-3541-9&uniqId=230100505-57. Accessed May 24, 2013.
- Ferri FF. Ferri's Clinical Advisor 2013:5 Books in 1. Philadelphia, Pa.: Mosby Elsevier; 2012. http://www.mdconsult.com/books/about.do?eid=4-u1.0-B978-0-323-08373-7..00002-9&isbn=978-0-323-08373-7&about=true&uniqId=343863096-23. Accessed May 24, 2013.
- Gibson LE (expert opinion). Mayo Clinic, Rochester, Minn. May 24, 2013.