The foreskin is pulled back (retracted) behind the rounded tip of the penis (glans) and stays there. The retracted foreskin and glans become swollen. This makes it difficult to return the foreskin to its extended position.
A physical examination confirms the diagnosis. The health care provider will usually find a "doughnut" around the shaft near the head of the penis (glans).
McCollough M, Sharieff GQ. Genitourinary and renal tract disorders. In: Marx JA, ed. Rosen's Emergency Medicine: Concepts and Clinical Practice. 7th ed. Philadelphia, Pa: Mosby Elsevier;2009:chap 172.
Silverman MA, Schneider RE. Urologic procedures. In: Roberts JR, Hedges JR, eds. Clinical Procedures in Emergency Medicine. 5th ed. Philadelphia, Pa: Saunders Elsevier;2009:chap 55.
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