The Post: Early Warning Signs Your Child May Be at Risk of Seriously Harming Themselves or Others first appeared on Crafting Your Home
Parents notice plenty of disturbing behavior as children grow: slammed doors, angry comments, mood swings, arguments, and the occasional fascination with dark or violent stories. None of those things, by themselves, mean a child is likely to become violent.
What deserves closer attention is a pattern, especially when behavior becomes more intense, threats turn specific, aggression escalates, or a young person has access to weapons.
Warning signs are reasons to investigate and act, not predictions about what a child will do.
Here are nine signs parents and caregivers should take seriously.
1. Threats to hurt or kill someone
An angry child might occasionally say something shocking without intending to act on it. The situation becomes more concerning when threats happen repeatedly, involve the same person, or include increasingly precise details.
Past attempts to carry out threats also matter.
According to guidance cited by the American Academy of Child and Adolescent Psychiatry, threats involving harm to oneself or others deserve particular attention when combined with previous aggressive behavior or access to weapons.
Rather than dismissing a threat as drama, stay calm and find out exactly what the child means.
2. A detailed plan or identifiable target
Specificity can quickly change how serious a threat is.
Naming a person, describing a method, identifying a location, choosing a time, watching a potential target, or writing down a plan are far more concerning than a vague angry statement.
School-violence guidance included in the brief identifies a specific plan to harm or kill someone as an especially immediate warning sign, particularly when there is already a history of aggression or previous threats.
Parents should not try to investigate or manage this alone.
3. Access to guns or other weapons
An interest in weapons is not the same thing as an intention to use one. Access, however, is an important difference.
Concern rises when a child possesses a weapon without supervision, brings one to school, threatens to use one, tries to obtain one after making threats, or can reach an unsecured firearm.
Parents should immediately reduce access to possible weapons. Unload and lock firearms, and keep ammunition separately secured and locked.
When a specific threat and access to a weapon exist together, involve emergency professionals.
4. Serious or escalating physical aggression
Children fight and lose their tempers, but repeated or increasingly severe violence deserves attention.
Watch for aggression that is becoming more frequent, results in injuries, involves weapons, targets vulnerable people, or spreads from arguments into attacks on family members or peers.
Severe rage following relatively small frustrations can also be concerning when it occurs alongside threats, property destruction, or other escalating behavior.
The important question is not simply, “Did my child get angry?” It is, “Is the intensity or danger increasing?”
Related: 6 Red Flags That Indicate a Child May Grow Up to Have Harmful Traits
5. Persistent bullying, intimidation, or cruelty
One playground disagreement is different from an ongoing campaign to frighten or control someone.
Repeatedly humiliating, threatening, hitting, coercing, or intimidating younger children or peers can be an element of a broader pattern adults need to address.
Likewise, deliberate cruelty toward animals should never be brushed off. On its own, it does not prove a child will become violent, but repeated intentional harm to animals is serious behavior that warrants quick attention.
Context and patterns matter much more than labels.
6. Deliberate fire-setting or major destruction
Curiosity about fire is not the same as intentionally starting dangerous fires.
Concern rises when a child deliberately sets fires, combines a strong fascination with unsafe behavior, commits serious vandalism, or repeatedly destroys property during angry episodes.
These behaviors become especially important when they occur together with threats, severe aggression, revenge-focused thinking, or weapon access.
One outdated stereotype parents should avoid is assuming that bed-wetting, fire-setting, and animal cruelty automatically form a reliable formula for predicting future violence. They do not. Consider individual behaviors within the wider situation.
7. Explosive anger that keeps escalating
A bad temper alone does not make someone dangerous. The concern is a worsening pattern in which increasingly intense outbursts involve hitting, threats, destruction, or an inability to calm safely.
Pay attention to what happens before, during, and after these episodes.
Are minor frustrations producing extreme reactions? Are objects being smashed? Are other people becoming afraid for their safety?
When explosive anger appears alongside threats or access to weapons, the situation deserves particularly rapid attention.
8. Repeated fixation on death, revenge, violence, or weapons
Dark drawings, violent games, unusual stories, or an interest in weapons should not automatically send parents into panic.
The wider pattern is what matters.
Repeated themes involving death, revenge, killing, or weapons across conversations, writing, artwork, online activity, or play can justify a calm conversation, particularly if the child is also making threats, identifying targets, becoming more aggressive, or talking about carrying out a plan.
Treat these themes as a prompt to ask questions, not as proof of intent.
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9. A major change after bullying, rejection, humiliation, trauma, or loss
Sometimes the first warning sign is not aggression at all.
A young person may suddenly withdraw from friends, lose interest in normal activities, experience major changes in daily functioning, struggle at school, get into increasing disciplinary trouble, or begin engaging in destructive or risky behavior.
Recent bullying, abuse, rejection, humiliation, loss, or exposure to violence can provide important context. These experiences do not automatically lead to violence, but dramatic changes afterward are worth taking seriously.
Parents, school staff, and other trusted adults may each hold one piece of the bigger picture.
Related: 10 Unethical And Shocking Experiments Conducted On Children
What parents should do when something feels seriously wrong
Stay calm, but do not ignore credible threats. Ask simple questions about what the child intends to do, whether another person is involved, whether there is a plan, and whether weapons are accessible. Avoid mocking, shaming, arguing, or promising to keep serious threats secret.
Share relevant information with appropriate school staff or professionals, including threats, writings, social-media posts, weapon access, recent bullying or losses, substance use, and major behavioral changes. Looking at the full pattern is far more useful than reacting to one isolated incident.
Immediate action is mandatory when a child says they intend to kill or seriously hurt themselves or another person, has a specific target or plan, possesses or is seeking a weapon, has just committed serious violence, cannot be safely calmed during a severe rage, or is actively threatening self-harm.
For a U.S. audience, call 911 or the local emergency number when there is immediate danger. Suicide or crisis support is also available by calling or texting 988.
The biggest red flag is not that a child seems “bad”; it is a pattern of growing threats, aggression, distress, planning, or access to weapons that tells adults it is time to step in and make safety the priority.