Experiencing nausea, especially in the first trimester of pregnancy, is one of the most common symptoms of your pregnancy.

If you are pregnant and nausea bothers you

If you are pregnant and have nausea while eating, it will bother you and you will look for the cause

If you want to know the cause of nausea during pregnancy

Read more.

In this article, you will read complete and scientific information about nausea during pregnancy in simple language.


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Most pregnant women experience only nausea in the first trimester of pregnancy, but there are some who experience simultaneous nausea and vomiting.

Why pregnancy nausea occurs is not yet fully understood

In the following, we want to acquaint you with the possible causes of nausea during pregnancy and tell you why you may experience nausea while eating during pregnancy.


Pregnancy nausea and when it starts

Doctors say that most women experience nausea around the sixth week of pregnancy, but there are also people who start nausea in the first month or around the fourth week of pregnancy.


Pregnancy nausea and time to reduce and relieve

Most women lose nausea from the tenth week of pregnancy, but it is possible for nausea to continue until the end of the fifteenth week.

A very small percentage of women experience nausea and discomfort before giving birth.

It is interesting to know that pregnancy nausea may stop over a period of time and recur.

Nausea is sometimes called morning sickness because nausea and gastrointestinal upset are more common in the morning. Pregnancy nausea usually lasts only a few months.

Definitely morning sickness or having nausea during the day will be annoying even if the nausea is mild or there is no vomiting.

Therefore, it is better to consult your doctor if you are pregnant and have nausea, or if nausea bothers you while eating.



Fifty percent of women experience nausea and vomiting early in pregnancy.

Twenty-five percent of pregnant women experience only nausea.

The prevalence of nausea and vomiting in pregnancy, which doctors call hyperemesis gravidarum, is one to three percent.

We wrote at the beginning of this article that this annoying disorder is sometimes called morning sickness, but according to doctors, nausea and vomiting in early pregnancy will not be limited to the morning and can occur throughout the day.

Unfortunately, this disorder can change the quality of life of a pregnant woman, waste money, and reduce the effective hours of life. Many common medications are ineffective in eliminating this annoying disorder.

It is true that nausea and vomiting are common in early pregnancy, but this disorder should not be considered the only cause of nausea and vomiting in pregnant women. Other causes of nausea and vomiting in pregnant women should also be investigated.

Nausea with vomiting during pregnancy will affect the health of the fetus and mother if it exceeds a certain limit.


Maternal symptoms in hyperemesis gravidarum


What causes hyperemesis gravidarum?

Doctors say that when you have a miscarriage or a molar pregnancy, you will have more nausea and vomiting than women with normal pregnancies.

This accompaniment may help to understand the cause of nausea and vomiting in pregnancy.

In molar pregnancies, a hormone is secreted by placental cells. Probably, a compound or substance secreted by more placenta may exacerbate nausea and vomiting in women with molar pregnancy.

Women who experience pregnancy at an older age

Women smokers

And women with a history of pregnancy and previous deliveries

They have less nausea and vomiting during pregnancy because these hormones are less present in these groups.

Therefore, doctors have concluded that the presence of HCG, which is secreted from the placenta in the first months of pregnancy, is most likely related to nausea and vomiting during pregnancy.

HCG is said to secrete estrogen from the ovaries, which induces nausea.

This theory is the strongest justifying possibility for nausea and vomiting in pregnancy. It is sometimes said that a lack of B vitamins may also be involved.

Again, all differential diagnoses for persistent nausea and vomiting in a pregnant woman should be considered.

If a pregnant woman is experiencing nausea while eating for the first time after the ninth week of pregnancy, or if it is the first time she has nausea and vomiting in the ninth month of pregnancy, a thorough examination should be performed because we said that nausea and vomiting are usually up to the tenth week. It should be better, not just new.

The following are the causes that can cause nausea and vomiting in pregnancy (other than hyperemesis gravidarum):

Inflammation of the gallbladder or cholecystitis, which is common in pregnancy and is characterized by pain in the upper and right abdomen that spreads to the back and right shoulder.

Urinary tract infections can be accompanied by general nausea, abdominal and back pain, nausea and vomiting.

Urinary tract infections in pregnant women of any kind should be treated, untreated urinary tract infections are very dangerous

Note that the first and second reason for abdominal surgery without gynecological reasons in a pregnant woman is biliary problems and appendicitis.

So take nausea while eating and anorexia seriously and do not take it into account as pregnancy.

Acute appendicitis, cholecystitis, and pancreatitis can be very dangerous if left untreated.


Dangerous signs

The following should not be present in pregnancy nausea and vomiting:


You should tell your doctor immediately if you experience any of the symptoms described



To evaluate the existence of the above causes, the doctor will use the results of the following tests

Urine ketone strip

Perform liver function test and measure liver enzymes

Measurement of BUN and blood creatinine

Measurement of blood sodium and potassium

Perform laboratory tests related to thyroid function

Measurement of amylase enzyme


Beta HCG is said to have similarities to thyroid-stimulating TSH, so in a pregnant woman without a history of thyroid disease, if the TSH is low, it is temporary and does not require medication.

In nausea and vomiting of pregnancy, especially if it is excessive, ultrasound should be performed to rule out molar pregnancy.

Multiple pregnancies also cause a lot of vomiting because the placenta is large and has a higher beta HCG secretion.

It is necessary to say that with hormonal changes in pregnancy (increase in progesterone), the muscles of the lower esophagus and the junction of the esophagus and stomach relax. In addition, the size of the uterus will increase with the growth of the fetus. In gastroesophageal reflux disease, nausea is common.


Control and treatment of pregnancy nausea

If tests show that your nausea while eating is due to a pregnancy condition, you can get help with the following treatments with your doctor’s approval and prescription.

Vitamin B6: every eight hours, each time 10-25 milligrams

The first-line drug, according to the American Society of Obstetricians and Gynecologists, is an antihistamine called doxycycline, or bendectin. This drug does not have a bad effect on the fetus and will reduce nausea and vomiting by up to 70%.

If approved antihistamines are not enough, your doctor may prescribe phenothiazine or metoclopramide, depending on the condition.

“You should not take these drugs arbitrarily!”

Another drug is ondansetron, which is more commonly used today than other drugs, but is slightly hypnotic.

In resistant cases, your doctor may use prednisolone. Taking corticosteroids before the end of ten weeks of pregnancy is associated with cleft lip and palate.

In studies, the results of ginger and acupuncture in controlling nausea have not yet been determined precisely and clearly.

Ginger can slightly aggravate reflux and heartburn.


Does pregnancy nausea and vomiting affect the outcome of pregnancy and the fetus?

Generally, these problems do not cause weight gain and low birth weight babies, but it is said that low birth weight babies are more common among women with nausea and vomiting during pregnancy.

Pregnancy nausea and vomiting do not cause fetal abnormalities.

In very severe cases of pregnancy vomiting, cases of fetal death have been reported in utero, but it has been very limited and it is unlikely that the only cause of death in these rare cases was severe maternal vomiting.

You need to make sure that nausea during pregnancy and even most cases of nausea and vomiting during pregnancy is safe and temporary.


When should the mother be hospitalized?

In the following cases, hospitalization of the pregnant mother is required:


High risk groups

Pregnancy nausea and vomiting are more common in the following women:

It is best to prescribe a multivitamin to women around the time of fertilization.

The first line of drug treatment:

Vitamin B6 plus doxylamine which is completely safe and secure.

You can also use ginger as a nausea reducer.