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Why does my 9 month old get so angry?

Author

James Craig

Published Jan 08, 2026

When infants display anger and aggression, it is often due to discomfort, pain or frustration. Older babies will use aggression to protect themselves, to express anger or to get what they want. When your baby is aggressive, it is because he has not learned a better way of behaving.

Is it normal for my 9 month old to have a temper?

Tantrums are a normal stage of every baby's development, and they don't last forever (although sometimes they seem never–ending). By responding with empathy and showing your baby you care about their needs, you'll have to tools you need to weather the tantrum years.

Can babies show signs of anger issues?

According to one recent study, infants as young as two months can show anger—though temper tantrums often become more common as children enter their "terrible twos."

Why does my baby have so much anger?

Tantrums can make kids feel out of control and bad about themselves. A lot of anger in children is usually a sign that they are frustrated or in distress. It's important to find the cause. Anger issues in kids can be caused by conditions like autism, ADHD, anxiety or learning disorders.

How do you discipline a 9 month old?

How do you discipline a baby?

  1. Don't always say "no." Babies understand that “no” means “no” around 9 months if used firmly and consistently. ...
  2. Do redirect him. ...
  3. Do tell and show your baby how much you love him. ...
  4. Don't be too strict or rigid. ...
  5. Do be strict enough. ...
  6. Don't let down your guard about safety.
29 related questions found

Why does my baby hit my face?

Some kids crave physical sensory experiences more than others or have a slightly dulled sense of pain; in response, they might turn to hitting themselves to fulfill the desire for physical stimulation. Some kids also turn to repetitive physical movements as a way of self-soothing when they're stressed or tired.

How do you stop a baby from hitting?

What should you do when your toddler hits?

  1. Restrain them physically. Your instinct may be to physically hold your toddler back when they are trying to hit others. ...
  2. Remove your child from the situation. ...
  3. Discuss alternatives. ...
  4. Redirect. ...
  5. Provide emotional support. ...
  6. Prevent hitting before it begins.

Why is my 10 month old so angry?

The anger might start when your baby wants something he can't have or when something is taken away from him. He looks angry, and his body is heavy and tight. He focuses on what he wants and won't be distracted. He may kick and scream.

How can you tell if a baby has autism?

Recognizing signs of autism

  • May not keep eye contact or makes little or no eye contact.
  • Shows no or less response to a parent's smile or other facial expressions.
  • May not look at objects or events a parent is looking at or pointing to.
  • May not point to objects or events to get a parent to look at them.

How do you calm down an angry baby?

How to help your toddler manage anger

  1. Ignore the behavior and allow your child to let the tantrum run its course. ...
  2. Distract your child with a book or a toy. ...
  3. Change your toddler's location or move them to a quiet time-out if they're older than 2. ...
  4. Hold your child until they calm down.

What age do babies throw tantrums?

Temper tantrums often start at about 1 year of age. They continue until age 2 to 3. They start to happen less often as a child becomes more able to communicate his or her wants and needs.

What is an irritable baby?

A baby who becomes very irritable, fretful, and fussy, with long crying periods, may be ill or in pain. The baby may also become quite jittery or start to tremble. Irritability may be a sign that your baby has constipation, abdominal pain, an earache, or a viral or bacterial infection.

Is 9 month old supposed to scream?

This baby isn't much of a shouter (or at least not yet) and this sound is far more piercing. The shrieking I'm talking about has nothing to do with being upset. Actually, it's exclusively when he's not upset. The kid is either just bored and wants to hear his voice or happy and wants to hear his voice.

What are the 3 main symptoms of autism?

The symptoms to look out for in children for suspected autism are:

  • Delayed milestones.
  • A socially awkward child.
  • The child who has trouble with verbal and nonverbal communication.

What age do babies say mama Dada?

During these months, your baby might say "mama" or "dada" for the first time, and will communicate using body language, like pointing and shaking his or her head.

What are the top 5 signs of autism?

Signs of autism in children

  • not responding to their name.
  • avoiding eye contact.
  • not smiling when you smile at them.
  • getting very upset if they do not like a certain taste, smell or sound.
  • repetitive movements, such as flapping their hands, flicking their fingers or rocking their body.
  • not talking as much as other children.

Can babies have tantrums at 10 months?

Temper Tantrums

Babies “melt down” most often when they are frustrated, tired, hungry, sick, over stimulated, or can't have what they want.

Why does the sound of a baby crying make me angry?

Noisy eaters, a baby crying, or even overly-loud breathing can cause frustration for those with misophonia; relationships suffer and some people struggle to work in loud environments. Despite knowing a vast amount about its effects, the cause of misophonia had alluded professionals.

Why do babies start hitting?

Toddlers are short on both language and social skills, and when they play together they can easily become frustrated. When they lack the ability to express what's wrong in words, hitting and other types of aggression sometimes result. It is developmentally normal for toddlers to hit.

Why do babies hit their moms?

Their reasons for hitting are innocent enough—and they usually fall into one of these categories. She's trying to communicate. Like everyone else, toddlers get bored, hungry, tired, and overwhelmed. The difference is they lack the verbal skills to communicate these emotions, which can make them even more frustrated.

What should 10 month olds be doing?

Babies at this age can crawl, pull from a seated position to standing, squat while holding on or sit back down, and cruise around while holding onto the furniture or your hands. Walking is now just a couple of months away, so you can expect your baby to soon be on the go even more.

Why does my baby keep slapping me?

Frequently, as you have discovered, one year olds can display behaviours such as slapping, hitting and even biting and these are perfectly normal at this age. While these can sometimes be due to frustration, often they are driven by sensory exploration.

What age is a toddler?

1. They've had a first birthday. According to the Centers for Disease Control (CDC) , kids between the ages of 1 and 3 are considered toddlers. If your baby has celebrated their first birthday, they've automatically been promoted to toddlerhood, according to some.

Why is my baby hitting himself in the mouth?

Your Toddler May Be in Pain

Meanwhile, babies who are teething may also hit themselves at times to cope with the pain in their gums. Sometimes, hitting can be self-soothing. Be on the lookout for signs your child may be in physical pain. Pay attention to where they are hitting themselves.

Does teething cause irritability?

During the teething period there are symptoms that include irritability, disrupted sleep, swelling or inflammation of the gums, drooling, loss of appetite, rash around the mouth, mild temperature, diarrhea, increased biting and gum-rubbing and even ear-rubbing.