In the Unani System of Medicine Threatened abortion is called Isqat Ehtemali and Ajhaze manzar is the Arabic vernacular of Threatened abortion. It is defined as vaginal bleeding before 20 weeks gestational age in the setting of a positive urine and/or blood pregnancy test with a closed cervical os, without passage of products of conception and without evidence of fetal or embryonic demise. In the Unani system of medicine, Plants have been used extensively in unani system of medicine to maintain the health of the female reproductive system. These have been used mostly in combination or monotherapy. Much of the scientific interest has been directed towards the prevention of abortion. The herbs often used in the prevention of threatened abortion are Ashok chal, Mazu, Mayan, etc. This review paper highlighted on Unani concept of Threatened abortion, its prevention, and management with Unani medicine.