Hamster egg penetration test

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Hamster egg-penetration test (HEPT) (or simply Sperm penetration test) is an in-vitro test used to study physiological profile of spermatozoa.[1] It makes use of zona-free hamster egg, which resembles human ovum. A normal sperm is capable of penetrating the egg, showing its fertilizing capacity. The test is expensive and not reliable.[2]

See also[edit]


  1. ^ Mortimer, David (1994). Practical laboratory andrology. New York: Oxford University Press. pp. 221–237. ISBN 9780195065954. 
  2. ^ Padubidri; Daftary (2011). Shaw's Textbook of Gynaecology, 15e. p. 204. ISBN 9788131225486