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What Can Cause Recurrent Miscarriage or Recurrent Pregnancy Loss?

Reviewed by
Dr.Padmaja Mohan 93% (231ratings)
MS - Obstetrics and Gynaecology, DCN -Diploma in Clinical Nutrition, MBBS, Fellowship in Cosmetic Gynaecologgy
Gynaecologist, Noida  •  31years experience
What Can Cause Recurrent Miscarriage or Recurrent Pregnancy Loss?

Recurrent miscarriage is a condition when there has been three or more successive pregnancy losses ,It is also called as Habitual Abortion. It is different from infertility as, infertility is the inability to conceive.For many cases, cause of a recurrent miscarriage has not always been found. A number of factors can cause recurrent miscarriages of which some are treatable.It may not always be possible to identify a cause for recurrent miscarriage in a couple even after extensive research and treatment procedures.

Some of the common causes of recurrent miscarriage are described below:

1. Chromosomal abnormalities

Incompatible chromosomes can result into pregnancy losses. When an egg and a sperm meet, of which one of them is faulty, they can't line up properly resulting into chromosomal abnormality. Such conditions lead to miscarriages.

2. Anatomical factors like Uterine abnormalities or Incompetent cervixes

Miscarriages occur if the uterus is abnormally shaped since the embryo is not properly implanted or even if it gets implanted, it may not get sufficient nourishment to survive. If the woman has a weak cervix, it cannot hold the developing embryo, leading to miscarriage.

3. Immunologic disorders

Under rare cases, the embryo itself is not accepted by the body. Antiphospholipid antibodies are antibodies which attack self-tissues such as embryos and prevent them from building up. This leads to miscarriages.

4. Untreated medical problems

Conditions such as thyroid or uncontrolled diabetes , Uncontrolled Hypertension, Kidnet disorders , result in uterine conditions which make it tough for the embryos to survive.

5. Hormonal Causes like Polycystic ovary syndrome, thyroid dysfunction

Women with polycystic ovary syndrome tend to have high levels of male hormones which result in irregular menstruation and ovulation. This can prevent the lining of the endometrium from maturing that is required for holding the embryo.

6. Bacterial infections

There may be presence of a number of micro-organisms inside the reproductive tract that may be harmless for the person. But there may be certain bacteria lined up in the reproductive tract which can prevent development of embryo, thus leading to miscarriages.

7. Lifestyle

Smoking and drinking are harmful lifestyle habits which may increase chances of miscarriages to a great extent. It is always advised to avoid smoking or drinking when you wish to conceive. Other lifestyle conditions, such as working in certain environments like hospital environments, farms, laboratories, etc, may lead to miscarriages; however, the exact reason has not been identified yet.

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