How to Carry a Newborn? Understand Through 1 Spinal Development Stage Chart

How should you carry a newborn? According to a physical therapist, after a baby is born, spinal development does not become stable until around age 7. Especially within the first year after birth, a baby’s spine changes noticeably about every 3 months. Therefore, “how to hold a newborn without affecting spinal development” is a topic every mom and dad cares about. Parents are also curious about which baby care products can help support a baby’s healthy spinal development while making it easier to hold baby, avoiding improper posture and prolonged stretching or force on the tendons at the base of the thumb, which may lead to mommy wrist. This time, GENNIE’S uses a baby spine development chart to explain how to carry a newborn properly and introduces 2 helpful baby care products. Moms and dads who want to know how to carry a newborn can read on.
Table of Contents (Click to Read Each Section)
- How to Carry a Newborn Properly? Learn How to Use a Baby Carrier from One Spine Development Chart▼
- How to Hold a Newborn? 2 Baby Care Essentials Recommended▼
- Recommended Baby Care Essential: GENNIE’S Air-Cushion Baby Carrier with High-Support Air-Cushion Seat for Easier Baby Carrying▼
How to Carry a Newborn Properly? Learn How to Use a Baby Carrier from One Spine Development Chart

As mentioned above, the way moms and dads carry their baby is very important for spinal development. According to a news report, if parents support the baby’s head, neck, waist, back, and legs with one hand and the support points are not aligned, it may affect the baby’s spinal alignment, while also concentrating the baby’s weight on the parents’ arms and causing muscle soreness. Based on baby spine development stages, GENNIE’S has organized one chart to explain how to use a baby carrier in an ergonomic way to support and protect your baby’s spine.
Further Reading:
1. Baby 0–3 Months: Let Baby Stay Curled Up Inside the Carrier
According to Uho Health Network, if a baby’s lying posture is not proper, or if parents are not used to letting the baby sleep on their back, it may affect spinal alignment. This is because from 0 to 3 months old, when viewed from the side, the baby’s entire spine curves backward in a “C” shape, and the cervical, thoracic, lumbar, sacral, and coccygeal sections have not yet shown obvious developmental curves. Therefore, when using a baby carrier, let baby stay curled up inside the carrier, with the head resting close to mom’s chest. Avoid placing heavy objects between baby’s back and the carrier to stabilize baby. This helps baby maintain a comfortable position inside the carrier, which may help reduce crying and support healthy spinal development.
2. Baby 4–6 Months: Place Both Baby’s Legs Outside the Carrier
How should you carry a newborn? For babies aged 4 to 6 months, the cervical spine has started to curve forward. Therefore, inside a baby carrier, baby can lift their head and look toward mom. When using a carrier, mom can easily look down and see baby’s sleeping face, which may help release oxytocin, supporting breastfeeding moms during nursing. It is important to note that babies under 6 months are still developing their hip joints, and their spines are still relatively delicate. They have not yet developed the ability to sit. Therefore, if the baby’s body below the head is fully wrapped inside a baby sling or carrier, with both legs tucked inside instead of placed outside the carrier or sling, it may place pressure on the spine and hip joints. The ideal method is for parents to let baby maintain an M-shaped sitting posture when holding baby or using a carrier, with the hip joints naturally opened and both legs relaxed outward, forming an overall M shape.
Further Reading: What Are the Correct Breastfeeding Positions? 4 Common Nursing Positions Explained for Moms.
3. Baby 6–9 Months: Let Baby Sit Inside the Carrier
At this stage, the baby’s thoracic spine continues developing as the spinal curve gradually moves toward the typical “S” shape, and the hip joints also become more stable. As a result, baby begins to sit. So how should you hold a baby aged 6 to 9 months? When securing baby with a carrier, it is recommended to let baby “sit into” the carrier, fully wrapping and supporting the hips and thighs. This uses baby’s own seated posture to distribute weight across the hips and thighs. At this stage, the muscles, joints, and ligaments in baby’s legs are continuing to develop steadily. Therefore, when moms and dads use a baby sling or carrier, they should pay attention to whether baby’s exposed legs may kick themselves. Parents can also choose an improved carrier with a wider seat cushion. A wider-top, narrower-bottom design increases the contact area between baby’s hips and the seat cushion, enhancing support.
Further Reading: What Age Can Babies Use a Waist Stool Carrier? It Can Be Used Once 3 Signs Appear.
4. Baby 10–12 Months: Use a Two-Shoulder Carrier to Stabilize Baby’s Weight
The lumbar spine begins to curve forward, forming the early shape of an S curve. Since baby’s hip joints have developed further at this stage, it is still recommended to use a carrier or sling to fully support baby’s neck, back, waist, hips, and buttocks, while keeping baby’s legs outside so they have more room to move. When baby can consciously wiggle and stretch, it supports the development of leg muscles, ligaments, and joints. It is important to note that babies at this stage are heavier. According to Mababy, the approximate weight of a 12-month-old baby is as follows:
- Baby boys weigh about 7.8–11.8 kg.
- Baby girls weigh about 7.1–11.3 kg.
At 1 year old, a baby’s weight is about three times their birth weight. Therefore, if parents are used to using a baby sling, they may consider starting to use a baby carrier with stronger support. With a sturdier material and more stable structure, it can fully support baby’s back and hips. A pressure-relieving carrier lets moms and dads hold baby securely while observing baby’s facial expressions in real time, and also helps free the hands and reduce pressure on both shoulders, making baby carrying more effortless.
How to Hold a Newborn? 2 Baby Care Essentials Recommended
Now we know that the first step to understanding “how to carry a newborn properly” is to understand baby spine development stages. This allows parents to support baby in the most ergonomic way for baby’s body, while giving the hip joints, waist, back, and spine ideal support. In the previous section, we introduced the benefits of using a baby sling and carrier to support baby’s weight. Next, GENNIE’S will explain further how to use these 2 baby care essentials to maximize their benefits. Let’s find out together.
1. Baby Sling: Spread Out the Shoulder Fabric to Reduce Pressure and Evenly Distribute Baby’s Weight

How can you carry a newborn more effortlessly while supporting baby’s spine? It is recommended to use a baby sling after baby is 6 months old. The strong fabric of the sling helps distribute baby’s weight. Without it, holding baby with one arm may concentrate the weight on the forearm and cause occasional soreness. With a baby sling, this baby care challenge can be improved. In particular, GENNIE’S baby sling has the following features, so moms and dads no longer need to worry about how to carry a newborn.
- One-piece aluminum alloy ring buckle, lightweight yet sturdy, with a smooth and seamless ring. When moms and dads use the sling to carry baby, they will not feel discomfort from metal parts.
- Shoulder and back pressure-relieving design. Pull the sling fabric at the shoulder downward and spread it left and right to evenly distribute baby’s weight, making baby care easier.
Further Reading: What Is the Difference Between a Baby Waist Stool Carrier and a Baby Sling? Understand from 3 Key Points.
2. Air-Cushion Baby Carrier: A Stable Air-Cushion Seat Fully Enhances Support

Before using an air-cushion baby carrier, it is best to consider whether the functions of the carrier suit your baby’s current developmental stage. For example, babies from 0 to 18 months old naturally have bow legs. Therefore, the air-cushion seat is ideally wider at the top and narrower at the bottom, fully wrapping baby’s hips, while the side is curved. This allows baby’s legs to relax and hang naturally while fitting both sides of the curved seat cushion, bringing greater comfort and enhanced support. Next, GENNIE’S has created a comparison table to help moms and dads understand the differences among carriers without a seat, carriers with a seat that is too bulky and difficult to store, and air-cushion baby carriers.
| Baby Carrier Comparison Table | |||
| Style | Air-Cushion Baby Carrier | Carrier Without a Seat | Carrier with a Seat That Is Too Bulky |
| Design | Combines a seat and carrier with improved design, featuring focused structural support around baby’s waist, back, hips, and thighs to enhance support | Can only use the carrier fabric to support baby’s full body weight. Ideally, the fabric around baby’s hips and thighs should be thickened or include special materials to enhance support |
To strengthen baby support, some baby care products are designed with harder and larger seat cushions. However, they are relatively difficult to store, and when the seat cushion presses against the parent’s abdomen, it may also cause discomfort |
| Suitable Age |
0–3 years old, with carrying methods adjustable according to needs |
The spine and hip joints are still developing, and the spinal curve is still in a “C” shape. Suitable for babies under 6 months old, allowing baby to stay in a womb-like position, with the head and legs tucked inward and the body curled up inside the carrier while resting against mom. | Recommended before 6 months old, when baby is lighter and smaller, to avoid placing extra burden on parents’ waist and back from the combined weight of the baby and the carrier seat cushion |
You May Be Interested In: Are Waist Stool Carriers Useful? 6 Pros and Cons Explained.
Recommended Baby Care Essential: GENNIE’S Air-Cushion Baby Carrier with High-Support Air-Cushion Seat for Easier Baby Carrying
After reading the above sections, you should have a clearer understanding of how to carry a newborn properly. During the first year after birth, it is recommended to adjust the baby-carrying method about every 3 months because a baby’s spine changes rapidly during this period. The spinal curve gradually changes from a C shape to an S shape. Using a carrying method that suits the baby’s spinal and joint development needs helps support healthier body development. After learning how to carry a newborn, many moms and dads may also wonder how to hold baby more effortlessly while still caring for baby’s spinal development. This is when practical baby care essentials can help.
You May Be Interested In: What Is Shaken Baby Syndrome? 8 Key Points to Know

GENNIE’S Air-Cushion Baby Carrier is recommended for parents. Improved from an air-cushion seat and carrier design, the air-cushion seat is wider at the top and narrower at the bottom, with a curved center and an overall inverted trapezoid shape. It fits baby’s hip shape, allowing both legs to relax outward in an “M” shape for better body support. The shoulder straps, baby abdominal pad, and seat cushion are all thickened by 20mm, helping baby sit steadily in mom or dad’s arms. The pressure-relieving design also helps free parents’ hands, allowing them to fully enjoy every moment of baby care.

