CAUSES OF MISCARRIAGE
1. baby's genes
Some miscarriages occur because the fetus is not developing normally. Problems with the baby's genes or chromosomes results to errors that occur as the embryo divides and grows — not problems inherited from the parents.
Some examples of genes abnormalities include:
• Blighted ovum. Blighted ovum is common cause of about half of all miscarriages that occur in the first 12 weeks. It occurs when a fertilized egg develops a placenta and membrane but no embryo. It mostly affects women who are 35 years and above.
• Molar pregnancy. A molar pregnancy, also called gestational trophoblastic disease, is less common, occurring in about one in 1,000 pregnancies. It is an abnormality of the placenta caused by a problem at fertilization. In a molar pregnancy, the early placenta develops into a fast-growing mass of cysts in the uterus. This mass may or may not contain an embryo. If it does contain an embryo, the embryo will not reach maturity.
2. Mother's health conditions
In a few cases, a mother's health condition may lead to miscarriage. Examples include:
• Uncontrolled diabetes
• Thyroid disease
• Infections especially brucellosis(brucella abortus)
• Hormonal problems
• weak cervix problems or uterus problems
• Septic miscarriage. If you develop an infection in your uterus, it's known as a septic miscarriage. This can be a very severe infection and demands immediate care.
3. Injury or Trauma
Some injuries and accidents can provoke miscarriages:
• Too much exercises. Ordinary exercises are okay and are encouraged but too much of everything is dangerous.
• Lifting extra ordinary weight or too much straining
• Having sex the last 2 months of pregnancy.
• Exposure to harmful chemicals.
4. Bad Habits.
Smoking, alcohol and illicit drugs. Women who smoke or drink alcohol during pregnancy have a greater risk of miscarriage than nonsmokers and women who avoid alcohol during pregnancy. Illicit drug use also increases the risk of miscarriage.