Gynaecology is concerned with the female genital tract and its disorders. In many areas, the specialties of gynaecology and obstetrics overlap. Gynaecology has been considered to end at 28 weeks gestation, but practically there is no clear cut-off.

Since 1st October 1992, this cut-off may be considered to occur at 24 weeks gestation, since the law and definition of abortion changed to bring it closer to the gestation at which a foetus becomes viable.