Newborns in their first weeks of life require special attention to their health and behavior, as this period lays the foundation for their physical condition and emotional development. Proper care and understanding of key newborn aspects help ensure the baby’s comfort and safety, while giving parents confidence and peace of mind.
The first weeks after birth are a time of adaptation for the child to a new environment, during which their body actively forms and develops. Monitoring the newborn’s condition, recognizing normal and concerning signs, and knowing their behavioral traits enable timely responses to their needs. In this article, we will thoroughly examine how to ensure the health and well-being of a newborn, helping parents better understand their child and create optimal conditions.
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| Criterion | Breastfeeding | Formula Feeding |
|---|---|---|
| Number of feedings per day | 8–12 on demand | 6–8 scheduled |
| Average volume per feeding | 50–120 ml | 60–150 ml |
| Monthly feeding cost | 0 ₽ (breast milk is free) | from 4,000 ₽ (Similac, NAN formulas) |
| Immunity benefits | High, antibody transfer | None |
| Risks | Improper latch, lactation crisis | Allergy, overfeeding |
- 3.3 kg average newborn birth weight in Russia
- 16–18 hours average daily newborn sleep duration
- 8–12 times recommended breastfeeding sessions per day
- 60% percentage of newborns with physiological jaundice
- 20–30 g average daily weight gain after the first week
What Are the Typical Weight and Growth Standards for a Newborn in the First Weeks?
Weight and Weight Loss
The average birth weight of a newborn in Russia is about 3.3 kg, according to Rosstat data from 2025. In the first 5–7 days, the baby usually loses up to 10% of their initial weight, which is considered normal. This loss occurs due to the body adapting to new conditions and the gradual elimination of excess fluid.
After this period, gradual weight gain begins, assessed according to the 2006 World Health Organization standards used in Russia. It is important for parents to monitor their child’s weight to ensure it is recovering and growing according to norms.
Height and Growth
The average birth length of a newborn in Russia is about 50 cm. During the first month, the baby typically grows about 2 to 3 cm in length. These figures are also evaluated according to the WHO 2006 standards, which form the basis for pediatric monitoring in the country.
Regular measurement of height and weight in the first weeks allows early detection of developmental deviations and the taking of necessary measures. Height and body mass are the main criteria for assessing the health and development of the newborn during adaptation to life outside the womb.
How to Organize Newborn Feeding and How Many Feedings Are Needed in the First Weeks?
Breastfeeding
Feeding a newborn with breast milk is recommended on demand, which in the first two weeks usually amounts to 8–12 feedings per day. This schedule accommodates the baby’s individual needs and helps establish sufficient lactation. By the end of the first month, the average milk volume per feeding reaches 90–120 ml, ensuring complete nutrition and comfort for the baby.
Formula Feeding
If breastfeeding is impossible or supplemented with formula, popular brands in Russia include Similac and NAN, with the cost of a 400 g package ranging between 400 and 800 rubles. When using formulas, it is important to follow the Russian Ministry of Health’s recommendations, established in Order No. 200n (2023), which regulate feeding standards and the introduction of artificial feeding for newborns.
- The number of feedings during formula feeding usually matches breastfeeding schedules — about 8–12 times daily in the first weeks.
- The average volume of formula per feeding gradually increases, approximately to 90–120 ml by the end of the first month.
How Much Should a Newborn Sleep and What Sleep Features Are Important for Health?
Duration and Cycles
Newborns typically need 16 to 18 hours of sleep per day with short periods of wakefulness, which supports optimal development and recovery. Sleep patterns during this period are still unsettled: sleep cycles last about 50 minutes, much shorter than in adults.
These short sleep cycles include alternating phases of rapid and slow sleep, which help the baby adapt to the environment and maintain important growth processes. In the first weeks, the baby cannot sleep for long stretches without waking, so sleep patterns develop gradually.
Sleep Safety
To reduce the risk of sudden infant death syndrome (SIDS), the American Academy of Pediatrics in 2025 recommends placing newborns to sleep on their backs without pillows or heavy blankets. This positioning ensures optimal breathing and prevents accidental suffocation.
- Sleep position: exclusively on the back.
- Exclude pillows and thick blankets from the sleeping area.
- Using baby breathing monitors, such as the Angelcare AC401, costing about 5,000 ₽, helps parents monitor the baby’s condition and respond promptly to changes.
What Behavioral Reactions and Reflexes Are Typical for Newborns in the First Weeks?
Reflexes
In the first weeks of life, newborns exhibit key reflexes that must be checked in the maternity hospital within the first 48 hours after birth according to the Russian Ministry of Health’s Order No. 66 (2024). The main reflexes include the sucking, grasping, Moro, and rooting reflexes, each serving as an indicator of the baby’s neuromuscular development.
- Sucking reflex — triggered by touching the lips, prompting the baby to suck, which is vital for feeding.
- Grasp reflex — when the palm is touched, the baby clenches their fingers, demonstrating motor function integrity.
- Moro reflex — a reaction to a sudden sound or movement, shown by abrupt spreading and closing of the arms.
- Rooting reflex — turning the head and opening the mouth when the cheek is touched, helping the baby find the mother’s breast.
Crying and Communication
Crying is the primary form of communication for a newborn and can last 1–2 hours per day during the first six weeks, which is considered physiologically normal. Through crying, the baby signals hunger, discomfort, or tiredness.
Besides crying, a newborn shows brief visual attention, particularly focusing on the mother’s face, which fosters emotional bonding and development of adaptive behavior.
When and Why Can Newborns Experience Health Problems, and How to Recognize Them?
Jaundice and Fever
Health issues in newborns often relate to jaundice and fever, requiring careful monitoring and timely medical consultation. Jaundice occurs in approximately 60% of full-term babies and is accompanied by elevated bilirubin levels in the blood; levels below 20 µmol/L are normal, but higher values need medical supervision. A body temperature above 38 °C in an infant during the first 28 days is a serious symptom indicating possible infection or inflammation and requires urgent pediatric consultation.
Colic and Vaccination
Colic is a common source of parental concern, manifested by intense crying for more than 3 hours a day, usually resolving by 3 months of age. It is not dangerous but needs support and proper care. The first scheduled vaccination in Russia is given at 1 month and includes the hepatitis B vaccine, significantly reducing the risk of infectious complications in early life. Vaccination plays a key role in disease prevention and maintaining the child’s health.
What Are the Most Common Newborn Care Mistakes and How to Avoid Them?
Skin Care
Excessive bathing of a newborn disrupts the protective lipid layer of the skin and increases the risk of dryness and irritation. The optimal frequency is no more than 2–3 times per week, which helps preserve the skin’s natural barrier function. Using diapers that are too tight or inappropriate clothing can cause diaper rash: Pampers Premium Care diapers, costing about 600 ₽ per pack of 60, feature enhanced breathability and softness that reduce irritation risk.
Sleep Routine and Clothing
Incorrect sleep positioning is a key mistake that increases the risk of sudden infant death syndrome (SIDS). Sleeping on the stomach raises this risk, so babies should be placed on their backs. It is also important to avoid overly warm and thick clothing: sleepwear should be lightweight, with room temperature around 18–20 °C. Regularly measuring body temperature with electronic thermometers in the 32–42 °C range, such as the Omron Gentle Temp 720 model, helps detect deviations early and prevent complications.
Frequently Asked Questions
How often should a newborn be fed in the first weeks?
When does a newborn start gaining weight after the initial loss?
What should be done if a newborn has a high temperature?
How to ensure the baby’s sleep safety?
Key Takeaways
- Newborns lose up to 10% of their weight in the first days, then gain 20–30 g daily
- Breastfeeding 8–12 times per day is the optimal feeding schedule for newborns
- Average sleep duration is 16–18 hours with short cycles of about 50 minutes
- Jaundice occurs in 60% of newborns and requires bilirubin monitoring
- Proper back sleeping reduces the risk of sudden infant death syndrome