Signs and symptoms may include:

Scars, such as from burns or cuts

Fresh cuts, scratches, bruises or other wounds

Broken bones

Keeping sharp objects on hand

Wearing long sleeves or long pants, even in hot weather

Claiming to have frequent accidents or mishaps

Spending a great deal of time alone

Pervasive difficulties in interpersonal relationships

Persistent questions about personal identity, such as "Who am I?" "What am I doing here?"

Behavioral and emotional instability, impulsivity and unpredictability

Statements of helplessness, hopelessness or worthlessness

Forms of self-injury

One of the most common forms of self-injury is cutting, which involves making cuts or severe scratches on different parts of your body with a sharp object. Other forms of self-harm include:

Burning (with lit matches, cigarettes or hot sharp objects like knives)

Carving words or symbols on the skin

Breaking bones

Hitting or punching

Piercing the skin with sharp objects

Head banging

Biting

Pulling out hair

Persistently picking at or interfering with wound healing

Most frequently, the arms, legs and front of the torso are the targets of self-injury because these areas can be easily reached and easily hidden under clothing. But any area of the body may be used for self-injury. People who self-injure may use more than one method to harm themselves.

When a friend or loved one self-injures

If you have a friend or loved one who is self-injuring, you may be shocked and scared. Take all talk of self-injury seriously. Although you might feel that you'd be betraying a confidence, self-injury is too big a problem to ignore or to deal with alone. Here are some options for help.

Your child. You can start by consulting your pediatrician or family doctor who can provide an initial evaluation or a referral to a mental health specialist. Don't yell at your child or make threats or accusations, but do express concern.

Teenage friend. Suggest that your friend talk to parents, a teacher, a school counselor or another trusted adult.

Adult. Gently encourage the person to seek medical and psychological treatment.