What is the difference between spontaneous abortion and induced abortion?

There is still a big difference between spontaneous abortion and abortion, as follows.
1, spontaneous abortion: refers to the natural termination process of the embryo during its growth and development, which is generally related to the chromosomal or genetic abnormalities of the embryo itself, and also related to the abnormalities of the woman’s uterine environment, such as uterine adhesions and malformed uterine cavity. In some cases, spontaneous abortion may also occur due to insufficient progesterone levels and insufficient luteal function in the woman’s body. Spontaneous abortion may have bleeding, lower abdominal distension, lumbago and back pain, and spontaneous abortion may have the ending of complete spontaneous abortion or incomplete abortion, and the need to clear the uterus.
2, abortion: a way to terminate pregnancy through drug abortion or abortion, there may be irreversible damage to the basal layer of the female uterus, abortion is a process of artificial termination of pregnancy.