Assault causing bodily injury is a criminal charge that requires the prosecution to prove two things: that you committed an assault, and that your conduct caused the other person actual physical harm. It sits a step above simple assault because the victim was in fact hurt, and depending on how badly, where it happened, and who the victim was, it can be charged as a misdemeanor or a felony. The bar for “injury” is lower than most people expect, which is why these charges catch so many defendants off guard.
What the Prosecution Has to Prove
Three pieces have to line up. First, an assault: an intentional act that either made harmful contact or put the other person in reasonable fear of imminent harmful or offensive contact. Raising a fist at someone’s face, lunging, or swinging an object in their direction can all qualify. Words alone cannot. “I’m going to hit you” is not an assault without some physical act that makes the threat feel immediate.1Legal Information Institute. Assault
Second, bodily injury to the victim. Third, a causal link between the two: the assaultive act has to have actually produced the harm, and the harm has to have been a reasonably foreseeable result. Foreseeability is a low bar. If you shove someone on a staircase and they fall and break a wrist, the broken wrist does not have to have been the likely outcome. It just has to be the kind of result a reasonable person would recognize as possible.
How Little It Takes to Count as “Bodily Injury”
The legal definition is deliberately broad. Under federal law, bodily injury covers cuts, abrasions, bruises, burns, disfigurement, physical pain, illness, impairment of any bodily function, and “any other injury to the body, no matter how temporary.”2Legal Information Institute. 18 USC 1365 – Definition of Bodily Injury State definitions follow the same pattern.
Nothing in that list requires a visible mark, a hospital visit, or lasting damage. A shove that leaves a sore shoulder, a slap that stings for a few minutes, a grab that bruises nothing but still hurts: any of those can meet the definition. Prosecutors do not need medical records or photographs. The victim’s own testimony that something hurt is often enough.
That matters because people charged with this offense frequently assume they are safe because “nobody was really injured.” They are not safe. If the complainant tells an officer or a jury that they felt pain, the injury element is on the table.
Misdemeanor or Felony?
The baseline version of this charge is a misdemeanor. Under the federal assault statute, assault by striking, beating, or wounding carries up to one year in jail and a fine. Simple assault without injury carries up to six months.3Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction State penalties vary but generally land in a similar range, with fines commonly between $1,000 and $4,000.
Several factors push the charge into felony territory and change the exposure dramatically.
- Severity of injury. Assault resulting in serious bodily injury, meaning harm that creates a substantial risk of death, lasting disfigurement, or prolonged loss of function of a body part, organ, or mental faculty, is a felony carrying up to 10 years in federal prison. Broken bones, head trauma, deep lacerations needing stitches, and injuries that impair organ function for weeks all fall here.3Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction4Legal Information Institute. 21 USC 802 – Definition of Serious Bodily Injury
- Use of a dangerous weapon. Assault with a dangerous weapon and intent to cause bodily harm also carries up to 10 years.3Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
- Victim under 16. Simple assault against a child under 16 raises the maximum from six months to one year.3Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
- Domestic context. Assault resulting in substantial bodily injury to a spouse, intimate partner, dating partner, or child under 16 carries up to five years.3Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
- Strangulation. Strangling or suffocating a spouse, intimate partner, or dating partner is a standalone offense carrying up to 10 years, whether or not visible injury results.3Office of the Law Revision Counsel. 18 USC 113 – Assaults Within Maritime and Territorial Jurisdiction
- Prior convictions. Many states escalate the charge for repeat offenders, converting what would be a misdemeanor for a first offense into a felony for a second or third.
Why Domestic Cases Are Treated Differently
When the alleged victim is a spouse, intimate partner, former partner, or family member, this charge carries consequences that do not attach to other assault convictions. Most jurisdictions have separate domestic violence assault statutes or enhanced penalties, and even a misdemeanor conviction can be life-changing.
The biggest single consequence is the federal firearms ban. Under 18 U.S.C. ยง 922(g)(9), anyone convicted of a misdemeanor crime of domestic violence is permanently prohibited from possessing firearms or ammunition.5Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts It applies even if the sentence included no jail time. It overrides state gun laws. And violating it is a separate federal felony. For anyone in law enforcement, the military, or armed security, that single provision can end a career.
States layer on more. Mandatory minimum jail time for repeat domestic violence convictions is common. So are protective orders, which create fresh criminal exposure the moment they’re violated, and court-ordered batterer intervention programs as a condition of probation.
Defenses That Actually Work
A charge is not a conviction, and several defenses come up often enough to be worth understanding.
Self-Defense
The most common. The person claiming self-defense generally has to show they reasonably believed they faced an imminent threat, that the force they used was proportional to that threat, and that they didn’t start the confrontation. You cannot respond to a shove with a weapon and call it proportional. In jurisdictions with a duty to retreat, you may also need to show you couldn’t safely walk away.
Once self-defense is raised, the prosecution typically has to disprove it beyond a reasonable doubt. Whether it holds up usually turns on the facts: witness accounts, surveillance footage, and the exact sequence of events.
Consent
Consent works in a narrow set of situations, mostly contact sports and mutual combat. People who agree to a boxing match or a hockey game accept the ordinary physical risks of the activity. The defense disappears when one participant withdraws consent, when contact goes beyond what was agreed to, or when the resulting injury is severe. You can consent to a sparring match. You cannot consent to being beaten unconscious after someone has stopped the fight.
Lack of Intent
Purely accidental contact is not assault. Bumping into someone on a crowded sidewalk and causing them to fall is not a crime, because there’s no intent to harm, no knowledge that harm would result, and no reckless disregard for the risk. The trap is the difference between “I didn’t mean to do it” and “I didn’t mean to hurt them.” If you intentionally swung at someone but didn’t expect them to get hurt that badly, the intent element is still satisfied, because the act itself was intentional.
What a Conviction Costs Beyond the Sentence
The jail time and the fine are often the smallest part. A conviction for assault causing bodily injury creates a permanent criminal record that shows up on background checks for employment, housing, and licensing. Employers in healthcare, finance, education, government, and security routinely screen for violent offenses, and even a misdemeanor can disqualify applicants or stall a career already in progress.
Professional licensing boards in many states treat violent offenses as grounds for discipline. Nurses, teachers, attorneys, real estate agents, and other license holders can face suspension or revocation after a conviction. For non-citizens, an assault conviction can trigger removal proceedings or block visa renewal, adjustment of status, or naturalization.
Expungement or record sealing is available in some jurisdictions, but usually only after a waiting period of several years and only for people with no new convictions in the meantime. Felony assault convictions are frequently ineligible for expungement at all. And the federal domestic violence firearms ban has no expungement exception under federal law, which means that for a qualifying misdemeanor, the prohibition is for life.5Office of the Law Revision Counsel. 18 USC 922 – Unlawful Acts
If you’re facing this charge, the single most important early decision is to talk to a criminal defense attorney in the jurisdiction where the case is filed. State statutes vary on definitions, sentencing ranges, and which prior convictions trigger enhancement, and the specifics drive almost everything about how the case will go.