Curschmann's spirals refers to a finding in the sputum of spiral shaped mucus plugs.

Other common findings in the sputum of asthma patients include Charcot-Leyden crystals, Curschmann's Spirals, and eosinophils (and excessive amounts of sputum).

Curschmann's name is lent to a number of eponymous medical terms, including "Curschmann's disease", also known as hyaloserositis of the liver; "Curschmann's trocar", a medical instrument; and "Curschmann's spirals", described as coiled mucinous fibrils sometimes found in the sputum in bronchial asthma.