Why Does Fetal Heartbeat Stop Suddenly?

7 min read

Written by Team Being The Parent

Team Being The Parent

We support parents through the journey of Pregnancy & Parenthood with our insightful and well curated content.

On the first ultrasound, the fetus will display a heartbeat; however, on consequent ultrasound, there no more heartbeat is seen, bringing about “miscarriage.” All the time, the purpose of this unsuccessful labor is never discovered except if there is a repeat of similar occurrences. The most normal reasons are mentioned below and why the fetal heartbeat stops suddenly.
For the initial nine weeks of pregnancy, the mother’s child is called an embryo, yet that will change on week ten when her little one hits fetus status. By this point, mother, as a rule, knows she’s expecting and may have even observed her infant on an ultrasound resembling a seed prepared to bloom. Numerous ladies favor the term pregnancy loss to miscarriage. Pregnancy loss is generally average within the first week of pregnancy, and the threats consistently decrease as the pregnancy moves ahead. 
Remember that pregnancy symptoms move after some time. These changes don’t always flag a pregnancy loss. Any individual who accepts that they have lost a pregnancy, with or without bleeding, should look for medicinal consideration. The experience will, without a doubt, be draining both emotionally and physically when you won’t have the option to comprehend why the fetal heartbeat stops suddenly for baby, and everything else appears to be ok. An infant’s heart may quit beating suddenly, and it is more common than one accepts. It represents a large number of early premature deliveries. 
This article will shed some light on the issue, which will assist you with understanding why the Fetal heartbeat stops suddenly for the baby? 

What Is Intrauterine Fetal Demise?

On the first ultrasound, the fetus will display a heartbeat; however, on consequent ultrasound, there no more fetal heartbeat is seen, bringing about “miscarriage.” This can even occur around the 10-week point. This is called an intrauterine fetal demise. In the majority of the occasions, the explanation isn’t known except if there is a past filled with miscarriages. The child dies inside the uterus; however, the cervix stays shut, and along these lines, you will see no bleeding. This sort of miscarriage is otherwise called, or ‘silent miscarriage’ or ‘missed miscarriage.’

Concept of miscarriage: 

A miscarriage is viewed as the loss of a pregnancy before it hits the 20-week point, and anyplace between 10 to 20 percent of ladies experience these. By far, most of the miscarriage occurs before the mother is even 12 weeks along. 
At the point when a mother loses a kid after the 20-week mark, it’s viewed as a stillbirth. Regardless of a miscarriage or stillbirth, a baby that isn’t developing is an indication that the pregnancy may not end how the mother desired.  

When does pregnancy loss happen without bleeding? 

Miscarriage doesn’t generally include bleeding. A woman may not encounter any indications and possibly learn of the miscarriage when a doctor can’t recognize a heartbeat during a standard ultrasound. 
Bleeding during pregnancy loss happens when the uterus empties. At times, the fetus dies, but the womb is not empty, and a lady will encounter no bleeding. 
As per the American Pregnancy Association, most miscarriages happen inside the initial 13 weeks of pregnancy. While an expected 10–25 percent of every perceived pregnancy ends in a pregnancy loss, a miscarriage in the subsequent trimester is uncommon. 

What does it mean by Fetal Heartbeat Stops suddenly for a baby?

Doctors start searching for the fetus’s pulse during the primary trimester; however, it might be nearer to the finish of the first trimester before they can find one with a Doppler. A child’s pulse might be heard around the ninth or tenth week when the infant goes from developing life to the fetus. 
The absence of a heartbeat early is a concerning sign. Since an infant’s heart begins thumping at around the fifth week stretch of pregnancy, most mothers and doctors hope to have the option to discover it when the kid is a fetus. 
However, it is feasible for the sound to be missed because of things like the child’s position or the arrangement of the placenta. 
During the early weeks of the fetal stage, specialists may not stress over not hearing a heartbeat. They will generally have mother returned and attempt again at another arrangement. If no stable is heard once more, an ultrasound might be planned to check whether there is an explanation. Now and again, the answer is that the fetus quit developing. 
It is possible for a mother to hear a heartbeat in early pregnancy and not hear one at a resulting arrangement. Once more, the infant’s position can influence this, however, so can fatally downfall.

Why if Fetal heartbeat stops suddenly for baby May Not Detected by Early Ultrasound? 

Before investigating the potential reasons behind the nonappearance of a heartbeat on the ultrasound, it is critical to see three factors. 

  • Type of ultrasound: A transvaginal ultrasound (an ultrasound where an ultrasound test is embedded into your vagina to show signs of improving access to your uterus) is substantially more accurate in early pregnancy. Before about two month’s gestation, a transvaginal ultrasound gives by a long shot the best outcomes. Finding a fetal heartbeat on a handheld Doppler can take considerably more. You might have the option to hear a fetal heartbeat with these gadgets at seven to eight weeks; however, you may not hear a heartbeat until you are 12 weeks along. 
  • Gestational age: If you are under seven weeks pregnant, it’s probably not going to discover a heartbeat by ultrasound. Utilizing a transvaginal ultrasound, a building up child’s pulse ought to be unmistakably obvious when a lady is seven weeks pregnant. Stomach ultrasound is significantly less sensitive, so it can take more time for the heartbeat to get unmistakable. 
  • The accuracy of your dates: If you trust you are at any rate seven weeks along and have had a transvaginal ultrasound, think about whether your times could not be right. In early pregnancy, being off by a couple of days with your evaluated last menstrual period or having an unpredictable ovulation example can have any effect in whether you see a heartbeat on an early ultrasound. For instance, if you didn’t ovulate precisely two weeks after your menstrual period began, there is an opportunity you are not so much “seven weeks pregnant” in gestational age, regardless of whether it has been seven weeks since your last menstrual period. 

 Reasons for fetal heartbeat stopping of the baby

All the time, the purpose of this unsuccessful labor is never discovered except if there is a repeat of similar occurrences. Most common reasons are: 

  • Chromosomal abnormality in the fetus: Around 3 in every five early miscarriages are believed to be related to a fetal anomaly, which suggests that something isn’t directly with the baby’s chromosomes. Most chromosomal abnormalities from the norm are because of either abnormal egg or irregular sperm or their unusual blend or are a result of an issue that happened at the time that the zygote experienced the division technique. Anyway, the body will self- abort the infant if there is a chromosome issue or issue with the advancement of the fetus 
  • Blood clot issue: The blood-coagulating disorder of the mother (thrombophilia), can make blood clots create in the little and most fragile veins in the placenta or the umbilical cord. These clots can affect the bloodstream and can make the heart of the fetus stop as the baby is denied of blood and oxygen
  • Twisting of cord: Twisting of line around the neck or limbs can remove the blood and oxygen supply to the embryo. At the point when this happens during the first trimester, it can bring about halting the heartbeat of the fetus.
  • Progesterone hormone inadequacy: Progesterone is required to convey the pregnancy effectively. Low levels of progesterone during long early stretches of pregnancy can stop the development and advancement of the fetus, making the child’s heart quit beating.
  • Infections of mother: It is essential to ensure that the mother is solid and without any disease. This is because a few contaminations that may not influence the mother much can harmfully but affect the embryo during the long early stretches of pregnancy. This can prompt the stopping of the embryo heartbeat

What Can Be Done If Fetal heartbeat stops suddenly for the baby? 

At the point when the fetal heartbeat stops the specialist will: 
 Wait for normal premature birth, gave the pregnancy isn’t surpassing twelve.

  • D and C: Dilation and curettage (D&C) is a methodology done to expel endometrium from the uterus to ensure all the trash from the recently failed pregnancy is killed, and the uterine covering is cleared to imagine effectively next time. 

 Fetus removed through ERPC (Evacuation of Retained Products of Conception): This method is the expulsion of the child/fetus from the uterus through a suction system and enlargement of the cervix.
It is essential to know why the Fetal heartbeat stops suddenly of the baby? For what reason did the miscarriage happen? It might give you some true serenity when you comprehend that what happened has nothing to do with you, and nature has its very own technique for managing things when there is something not directly with the unborn child. Anyway, with appropriate medical direction and an uplifting frame of mind, next time, you will complete your nine-month course productively. 


1. Can the Mother’s Stress Levels Impact Fetal Heartbeat?

Yes, new studies show that increase in stress hormones in the mother’s body can affect fetal heart rate.

2. I Didn’t Hear my Baby’s Heartbeat in My Scan. Can it be a Mistake?

Yes, the doctor could have checked the wrong sport or the machine might not have been sensitive enough. Baby’s position also matters. Always check again before you conclude it s a miscarriage.

3. How Long Can a Fetus Stay Without a Heartbeat?

Once the doctor concludes there is no heartbeat and the pregnancy has to be terminated; the fetus should not stay in for more than 4 weeks.

4. Can a Dead Fetus Infect the Mother?

Yes. It can cause severe infection in the womb or cause blood loss in the mother. The dead fetus will start to rot when there is no blood flow or oxygen. The body sometimes passes out the dead fetus like a period.


Watching for any updates on whether you’re losing is definitely troublesome and might be probably the hardest weeks of your life—however, it is unquestionably better to be sure beyond a shadow of a doubt before getting a diagnosis. Be your very own advocate for your care. Ask the same number of inquiries as you need, and hope to get clear with the answers. For the medical experts you work with, unnatural birth cycles are day by day events; however, for you, they are not. In losing a pregnancy, you are not just losing your child; however, the deepest desires that went with that kid. 
Respect yourself and grieve in the manner that is best for you and your partner.

Team Being The Parent,

We support parents through the journey of Pregnancy & Parenthood with our insightful and well curated content.Read more.

Responses (3)

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Kallepu Simha Vara prasad

Apr 26, 2017

if the heart beat will be stopped. what we can do..?


Asha Raine

Apr 07, 2017

''The excitement and happiness of pregnancy gives way to sheer disappointment ...'' Women who have experienced this do not feel 'disappointment'' they feel destroyed. They feel grief, they feel like their world has been torn apart, they feel distraught. Disappointment is not the word to use here. At all.



Apr 07, 2017

How can you find the reasons... are there some tests? By which u can come to know the reason

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