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It is not uncommon for cats to experience spontaneous abortions (miscarriages). A variety of medical reasons can cause this reaction. The cat should be evaluated immediately after a miscarriage to make certain more serious underlying health conditions do not exist.
If a cat has experienced a miscarriage, the most common thing an owner notices is abnormal and extended vaginal bleeding. There may also be an abnormal amount of discharge. An expelled fetus may be found, especially if the cat was in the late trimester.
The most common cause of a lost pregnancy is fetal death due to a hormonal imbalance. Some other causes include:
A standard blood test is used to detect the presence of parasites or other medical conditions in the cat. A health care professional can use an ultrasound to detect a viable pregnancy, or to look for anything remaining in the cat's uterus following a miscarriage. Occasionally, the cat’s uterus will be unable to expel all of the pregnancy matter effectively on its own (e.g., placental tissue), leading to infection or internal hemorrhaging.
The hollow bodily organ that holds the embryo and fetus and provides nourishment; only found in female animals.