Pregnancy & postpartum
Morning Sickness: Symptoms, Causes and When to See a Doctor
Quick answer
The main symptoms of morning sickness are nausea, vomiting, retching and food aversions in early pregnancy. Despite the name, it can happen at any time of day. It usually eases by weeks 16 to 20. If you cannot keep fluids down, feel faint or pass very little urine, contact your doctor promptly.
Last reviewed NariCareLife editorial team · 5 sources
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What is Morning sickness?
Morning sickness is the everyday name for nausea and vomiting in pregnancy. It usually starts in the first trimester and, for many women, settles by weeks 16 to 20. The name is misleading, because sickness can come at any time of the day or night, or last all day.
Mild to moderate morning sickness is unpleasant, but on its own it does not harm the baby. Hormonal changes in early pregnancy are thought to be one of the main causes.
Symptoms vary a lot between women, and even between pregnancies in the same woman. A small number develop a severe form called hyperemesis gravidarum, which can cause dehydration and weight loss and needs medical treatment.
Common symptoms of Morning sickness
Nausea
A queasy, unsettled feeling in the stomach that may come and go or last most of the day.
Vomiting or retching
Being sick, or dry heaving, sometimes after meals, smells or on waking.
Food aversions
Sudden dislike of foods you usually enjoy, such as tea, coffee, tadka or non-vegetarian dishes.
Sensitivity to smells
Cooking smells, perfume or masala aromas may trigger nausea more easily than before.
Excess saliva or a metallic taste
Some women notice more saliva than usual or a bitter, metallic taste in the mouth.
Low appetite
Feeling full quickly or not wanting to eat, especially on an empty stomach.
Tiredness
Feeling drained, partly from early pregnancy itself and partly from disturbed eating and sleep.
Acidity or heartburn
A burning feeling in the chest or throat that can make nausea feel worse.
What can cause Morning sickness?
- Hormonal changes in the first trimester are thought to be one of the main causes.
- It may be more likely in a first pregnancy or when expecting twins or more.
- Women who had severe sickness in a previous pregnancy are more likely to have it again.
- A history of motion sickness or migraines is linked with a higher chance of pregnancy sickness.
- Morning sickness can run in families.
- Sometimes another problem, such as a urinary tract infection, can cause or worsen nausea and vomiting.
How is Morning sickness diagnosed?
Morning sickness is usually recognised from your symptoms and the stage of pregnancy. Your doctor or midwife may ask how often you vomit, whether you can keep fluids down and whether you have lost weight. If sickness is severe, they may check your weight, pulse and blood pressure, test your urine for signs of dehydration or infection, and arrange blood tests. An ultrasound may be advised to check the pregnancy, for example whether you are carrying more than one baby.
When to see a doctor
Speak to your obstetrician or midwife if sickness is affecting your ability to eat, drink, work or look after yourself, even if it seems "normal" for pregnancy. Do not wait if you cannot keep fluids down for a day, pass very little or very dark urine, feel faint, or vomit blood; these need prompt medical assessment, as severe pregnancy sickness can be treated. Always discuss any medicines, supplements or home remedies with your doctor before taking them in pregnancy.
Get medical help promptly if you notice:
- You cannot keep any food or fluids down for 24 hours.
- Very dark urine, or you have not passed urine for more than 8 hours.
- Feeling very weak, dizzy or faint when you stand up, or losing weight.
- Vomiting blood, tummy pain, or a high temperature.
- Signs of hyperemesis gravidarum: severe, persistent vomiting that stops you eating, drinking or carrying out daily life. Seek medical care the same day.
In an emergency, call 112 or go to the nearest hospital.
How nutrition and lifestyle may help
Food does not cure or treat Morning sickness, but everyday habits can support your overall wellbeing alongside the care your doctor recommends.
Eat small and often
Small snacks every two to three hours may be easier than three large meals, since an empty stomach can make nausea worse.
Start the day gently
Some women find that a few plain crackers, a rusk or a handful of murmura before getting out of bed may help settle the stomach.
Sip fluids through the day
Small, frequent sips of water, nimbu pani, coconut water or thin buttermilk may be easier to keep down than large glasses.
Choose bland, cool foods
Cold or room-temperature foods like curd rice, idli or poha often smell less strongly than hot, spicy or fried dishes.
Try ginger if it suits you
Ginger in food or a mild ginger tea may help some women. Check with your doctor before using ginger supplements.
Rest and avoid triggers
Tiredness can worsen nausea. Rest when you can, keep rooms airy, and let someone else handle strong cooking smells if possible.
Indian foods to include
- Plain khakhra, rusk or crackers
- Curd rice
- Idli or plain dosa
- Poha or upma
- Coconut water
- Thin chaas (buttermilk)
- Banana
- Boiled potato or sweet potato
- Fresh ginger in food or tea
- Moong dal khichdi
Key takeaways
- Morning sickness is common in early pregnancy and can happen at any time of day.
- For most women it eases by weeks 16 to 20 and does not harm the baby.
- Small, frequent, bland meals and steady sips of fluid may help.
- Not keeping fluids down for 24 hours, dark urine or fainting needs prompt medical care.
- Severe, persistent vomiting may be hyperemesis gravidarum, which is treatable.
Morning sickness: frequently asked questions
Morning sickness usually starts in the first trimester and, for most women, eases by weeks 16 to 20 of pregnancy. Some women feel better sooner, while a few have symptoms for longer. If sickness continues well into the second trimester or suddenly gets worse, speak to your doctor or midwife so they can check for other causes.
Mild to moderate morning sickness does not usually harm the baby or put the pregnancy at increased risk, even if you eat less than usual for a while. Severe vomiting that leads to dehydration or weight loss, such as hyperemesis gravidarum, needs medical treatment, so it is important to get help early rather than wait.
Hyperemesis gravidarum is a severe form of pregnancy sickness that goes well beyond usual morning sickness. It causes persistent vomiting that can lead to dehydration, weight loss and difficulty carrying out daily life. It is a medical condition that often needs treatment, sometimes in hospital. If you cannot keep food or fluids down, contact your doctor promptly.
Small portions of bland, easy foods may help reduce nausea in pregnancy. Plain crackers, rusk, curd rice, idli, poha, banana and boiled potato are often well tolerated. Cold foods may smell less than hot ones. Sip water, coconut water or buttermilk between meals. If nothing stays down, see your doctor rather than relying on food changes alone.
Yes, it is normal to have little or no morning sickness. Many women have a healthy pregnancy without feeling sick at all, and the amount of nausea varies from one pregnancy to the next. If you are worried about any change in how you feel, your doctor or midwife can reassure you and check that all is well.
Some medicines can be used for pregnancy sickness, but only your doctor can decide if one is right for you. Do not start any tablet, herbal product or supplement on your own during pregnancy. If food and lifestyle changes are not enough, or sickness is affecting daily life, ask your doctor about safe treatment options.
Sources & references
- Vomiting and morning sickness — NHS
- Severe vomiting in pregnancy (hyperemesis gravidarum) — NHS
- Morning Sickness: Nausea and Vomiting of Pregnancy — American College of Obstetricians and Gynecologists
- Morning sickness — MedlinePlus, U.S. National Library of Medicine
- Hyperemesis gravidarum — MedlinePlus, U.S. National Library of Medicine


