A miscarriage (spontaneous pregnancy loss) is the loss of a pregnancy before 22 weeks (counted from the first day of the last period): early before 14 weeks, late between 14 and 22 weeks; from 22 weeks, it is called a stillbirth (intrauterine foetal death). Early miscarriage is common and usually due to chance; later losses justify tests to look for a cause. In every case, medical and psychological support is offered to the parents, who are not responsible for this loss.
Losing a pregnancy is a painful ordeal, whatever the stage. Information on pregnancy care and birth can be found on the Giving birth in Paris page.
| Type of loss | Stage | What it means |
|---|---|---|
| Biochemical pregnancy | Very early pregnancy | Positive test that quickly turns negative, with no pregnancy visible on ultrasound |
| Early miscarriage | Before 14 weeks | Pregnancy stops developing: embryo with no heartbeat, sac with no embryo ("blighted ovum") or spontaneous expulsion |
| Late miscarriage | Between 14 and 22 weeks | Spontaneous expulsion or pregnancy stopping, often after the cervix opens or the waters break |
| Stillbirth (intrauterine foetal death) | From 22 weeks | The baby's heart stops beating before birth |
These limits can vary slightly between professional societies and countries. The threshold of 22 weeks, or a weight of 500 grams, is the World Health Organization viability criterion. In France it no longer determines registration of a stillborn child (acte d'enfant sans vie), which since 2008 has been based on a medical certificate of delivery.
It affects about 15% of recognised pregnancies. In most cases, it is caused by a chromosomal abnormality in the embryo that occurred by chance at conception. The risk rises with the mother's age. Stress, work, moderate exercise or sex do not cause it. The first signs and what to do are covered in the article on bleeding in the first trimester.
The most common causes are an infection (which can travel up from the vagina to the uterus or come from the bloodstream, such as listeriosis), a weak cervix (cervical insufficiency) that opens without contractions, a uterine malformation, or more rarely an abnormality in the foetus.
The main causes found are placental problems (placental insufficiency, placental abruption), maternal complications (pre-eclampsia, diabetes, autoimmune diseases, severe obstetric cholestasis), infections, cord problems and foetal abnormalities. Smoking, obesity and older maternal age increase the risk. Despite full investigations, some deaths remain unexplained.
Depending on the situation and your choice: waiting for natural expulsion, medication, or vacuum aspiration. Before 12 weeks, the French College of Obstetricians and Gynaecologists (CNGOF) has recommended since 2024 that anti-D immunoglobulin should not be given, even if you are rhesus negative. Follow-up is described in the article on follow-up after a miscarriage.
The diagnosis is confirmed by ultrasound. The team gives you the time you need, unless there is a medical emergency (infection, haemorrhage, severe pre-eclampsia). Most often, the birth takes place vaginally, after induction with medication, with pain relief, often an epidural. A caesarean is offered only in specific situations, because it does not make the experience easier and carries risks for future pregnancies.
If you are rhesus negative, an anti-D immunoglobulin injection is given within 72 hours. Treatment to limit milk production is also available if you wish.
After a single miscarriage, no tests are needed. In France, tests are traditionally offered after three consecutive early miscarriages; the 2022 European guidelines of the European Society of Human Reproduction and Embryology (ESHRE) suggest considering them after two pregnancy losses. They include:
Routine testing for inherited thrombophilia is no longer recommended. In about half of cases, no cause is found, and the chances of a live birth in a future pregnancy remain good.
Tests are guided by the circumstances: swabs to look for infection, blood tests (pre-eclampsia, diabetes, clotting, antibodies, passage of foetal blood into the mother's circulation using the Kleihauer test), targeted serology (parvovirus B19, CMV, toxoplasmosis).
The two most informative tests are examination of the placenta and foetal post-mortem examination (autopsy). A post-mortem is carried out only with the parents' written consent. It is done respectfully, and the baby's body can then be seen and cared for. Genetic testing may also be offered.
Losing a pregnancy is often experienced as losing a child, even very early on. Shock, sadness, anger, guilt or a sense of injustice are common reactions. After a miscarriage, post-traumatic stress, anxiety or depression affect a significant proportion of women and sometimes persist beyond nine months.
If you are in severe distress or having dark or suicidal thoughts, in France you can call 3114, the national suicide prevention line, free and available 24/7.
Do not hesitate to ask the maternity unit's social worker for help.
A follow-up appointment, often a few weeks after the loss, is a chance to review test results, answer your questions and prepare for a possible new pregnancy. French guidelines do not advise delaying a new pregnancy after an early miscarriage; after a late loss, the timing is decided with you, according to your physical and emotional recovery. Depending on the cause found, closer monitoring, treatment (aspirin, heparin, cervical stitch) or more frequent ultrasounds may be offered.
If you feel faint, are haemorrhaging or are in distress, in France call 15 or 112 (or your local emergency number). You can also go to the emergency department of the maternity unit where you are followed (Maternité Sainte-Félicité or Clinique Sainte-Thérèse).
No. Most early miscarriages are caused by a chromosomal abnormality that happened by chance, and neither stress, work, normal physical activity nor sex is responsible.
In France, tests are traditionally offered after three consecutive early miscarriages, and European guidelines consider them after two. A late miscarriage or a stillbirth justifies tests after the first episode.
The risk is slightly higher than in the general population, but the vast majority of subsequent pregnancies end with the birth of a living baby. Monitoring is tailored to the cause found.
No, a foetal post-mortem examination is only carried out with the parents' written consent. It often provides useful information to understand the loss and prepare for a future pregnancy.
Bleeding, with or without lower tummy pain, is the most common sign, but it does not always mean a miscarriage. Only an ultrasound scan, sometimes with an hCG blood test, can confirm the diagnosis. See bleeding in the first trimester.
A question about your situation?Appointments at the practice or by video consultation, usually within one week to 10 days.
Book an appointmentGeneral information article: it does not replace a medical consultation. In an emergency, call 15 or 112 in France, or your local emergency number.