Baby Sucking Hand: Reasons, Risks And How To Deal With It


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Sucking hands or fingers is a normal behavior in babies. Sometimes, you may notice babies sucking fists, or even trying to mouth their feet. Hand sucking can be a way of communicating or a self-soothing strategy for babies.

Most babies stop this habit on their own between two and four years of age. You may consult a pediatrician if your child sucks hands even at kindergarten age since it may cause problems with permanent teething.

Read this post to know about the reasons and risks of hand sucking in babies and how to deal with it.

Reasons For Hand Sucking In Babies

Various reasons may make a baby suck their hands. You may have to observe your baby in detail to identify the cause of hand sucking.

Common reasons may include (1):

1. Hunger

Babies may suck hands when they are hungry. Hand sucking may indicate feeding time. Since babies suck a nipple to get milk or formula, it is normal for them to think that sucking may give them food.

Babies may suck hands even when they are full. Therefore, you can also look for other hunger cues, such as lip-smacking, opening and closing of mouth, and fussiness.

2. Teething

Teething may cause irritation and pain in babies. Rubbing something against the gums may soothe them, and, thus, babies may suck hands to relieve sore gums. Teething may begin between the ages of six and ten months (2).

Babies can become fussy, cry, and often drool when teething. You may also notice that they try to suck or chew other objects during this phase.

3. Relaxing

Babies may suck hands to self-soothe from as early as the age of two months (3). Babies may suck their hands when they feel stressed, such as when around strangers or when separated from parents for some time. If they do so, then hand sucking is a self-soothing method. They may feel calm and relaxed while sucking their hands.

4. Boredom

As babies grow, they like to stay engaged with toys or caretakers for extended periods. When they have nothing to keep them occupied, they may resort to sucking hands out of boredom. Sometimes, if you keep them in their play yard or with a toy, they may begin sucking their hands to cue that they are bored and need something new.

5. Entertainment

Babies may become fascinated with their hands when they are two or three months old. They may think that it is a fantastic tool, which can be controlled by self. So, they may begin to explore the hand. The sense of sucking at the hands can be entertaining for many babies, and they tend to do it often without any apparent reasons.

Always look for reasons why your baby is sucking their hands. It is challenging to control thumb or hand sucking in later ages if it becomes habitual. You can offer them pacifiers to control this behavior. Pacifiers can be more convenient since you can handle it.

Risks Of Hand Sucking In Babies

Hand sucking usually does not cause any serious problems for babies. However, it is essential to ensure that their hands are clean. Babies who crawl or walk are likely to touch multiple surfaces causing germs to settle on their hands. Therefore, keep the baby’s hands clean and also the surfaces or toys that they touch often.

According to the American Dental Association (ADA), hand or thumb sucking does not cause oral development problems during the first few years of life. Hand sucking beyond the age of four may damage permanent teeth. You may seek a pediatrician’s advice to stop the thumb or hand sucking habit of a preschooler (4).

How To Deal With Hand Sucking In Babies?

There is usually no action needed for hand sucking in babies unless it is a hunger cue. If it is due to teething and your baby has gum swelling or fever, seek pediatrician’s advice. You can also see a pediatrician if the child continues to suck their hands or thumb beyond the age of four years.

Parents can observe some steps to make hand sucking safer and provide some alternatives to babies (5) (6).

  • Baby proof the house if your baby begins to crawl or walk. You may have to keep all dangerous objects out of the baby’s reach since hand sucking babies often try to mouth other things, too.
  • You may introduce new toys, such as crunchy stuffies and sensory toys, that may distract the baby from sucking their hands.
  • If your baby is teething, give them teething toys, a cold washcloth, or a frozen feeder to suck. It may reduce pain and irritation.
  • You may offer them a pacifier when they begin to suck hands. Choose the safer one-piece pacifier that does not disintegrate into multiple parts. Do not let the child use the pacifier beyond the age of four years.

If a newborn baby is sucking hands even after feeding, check if the baby is getting adequate breast milk or formula. A pediatrician or lactation consultant can help in such situations.

Sucking on hands and fingers is part of a baby’s normal development, and they outgrow the habit. If you suspect hand sucking is due to teething or hunger, check for any hunger- or teething-related cues. Place dangerous objects out of baby’s reach and keep their hands clean. If your baby continues with hand sucking even beyond the age of four years, do not hesitate to consult a pediatrician.


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