Signs & Symptoms of Heroin Addiction

For over 30 years, Vantage Point is the area’s only full-service mental health facility with a complete continuum of psychiatric and behavioral health services for adults and senior adults.

Understanding Heroin

Learn about heroin and substance abuse

Heroin is a highly addictive drug that is derived from morphine. It is an opiate that works as a depressant that, when taken in its purest form, provides the user with feelings of euphoria by temporarily minimizing the brain’s ability to feel pain while also increasing feelings of pleasure.

Heroin addiction occurs when a person begins a pattern of use that leads to significant impairment or distress. When people use heroin, their brain experiences both molecular and neurochemical changes. These changes continue over time as the brain builds tolerance to the pleasurable effects of the drug, causing the user to need higher doses in order to feel the effects that the body has begun to crave. Drug addiction also leads to the disturbance of a person’s inherent hierarchy of needs, meaning that obtaining the drug becomes the highest priority in the person’s daily life.


Heroin addiction statistics

It is estimated that 9.2 million people worldwide use heroin. In the United States, opiates (predominantly heroin) make up 18% of the population who enter treatment for drug and alcohol addiction.

Causes & Risk Factors

Causes and risk factors for heroin addiction

The causes of heroin addiction can vary and overlap differently depending on the person using it. The following causes have been linked to the onset of heroin addiction:

Genetic: Studies have shown that genes have a strong influence on increasing a person’s risk of developing a dependence on drugs and alcohol. Some people are said to inherently have “an addictive nature” in which they try something once and seem to become instantly addicted to it. These individuals may try the drug out of curiosity, only to quickly find themselves needing it in order to function.

Physical: Heroin addiction causes the structure and functioning of the brain to change. It also disrupts the brain’s communication system, disturbing the way nerve cells send, receive, and process information. As these changes occur, people begin to lose the self-control required in order to stop using the drug.

Environmental: For some people, significant life events can trigger the need for something to replace the pain that those events caused. Things like trauma, loss, or suffering from abuse are examples of stressors that can lead an individual to seek out something that will numb their pain.

Risk Factors:

  • Family history
  • Lack of a support system
  • Lack of family involvement
  • High levels of stress
  • Peer pressure
  • Loneliness
  • Being male (men are twice as likely as women to struggle with drug addiction)

Signs & Symptoms

Signs and symptoms of heroin addiction

The signs and symptoms of heroin abuse will vary based on the extent and length of time a person has been using the substance. The following are some common examples of symptoms of heroin addiction:

Behavioral symptoms:

  • Lying
  • Stealing
  • Slurred speech
  • Skin picking
  • Sudden bursts of hyperactivity
  • Wearing long sleeves and pants even in summer

Physical symptoms:

  • Nausea
  • Vomiting
  • Dry mouth
  • Runny nose
  • Severe itching
  • Dramatic weight loss
  • Track marks on arms or legs
  • Scabs or bruises on the skin
  • Impaired vision

Cognitive symptoms:

  • Disorientation
  • Difficulty concentrating
  • Impaired decision-making
  • Paranoia
  • Alternating between wakeful and drowsy states

Psychosocial symptoms:

  • Mood swings
  • Loss of self-control
  • Loss of interest in things that one used to be interested in


Effects of heroin addiction

The effects of heroin addiction can include:

  • Social isolation
  • Problems with interpersonal relationships
  • Loss of job or expulsion from school
  • Legal problems or incarceration
  • Participating in high-risk behaviors
  • Avoidance of certain people, places, or things
  • Higher susceptibility to illnesses and infections
  • Death

Co-Occurring Disorders

Heroin addiction and co-occurring disorders

Drug use in general often co-exists with other mental disorders, and heroin is no exception. Mental illness can cause people to feel like they have no control over their emotions, and by using substances, they are able to feel a sense of control over how their body responds to the substance. Similarly, people may use substances as a way to self-medicate in hopes that symptoms of the disorder will dissipate.

Some examples of mental disorders that co-exist with heroin addiction include:

  • Depression
  • Bipolar disorder
  • Psychosis
  • Anxiety
  • Schizophrenia
  • ADHD

Withdrawal & Overdose

Effects of withdrawal and overdose

The effects of withdrawal from heroin will vary in length of time and intensity from person to person. Withdrawal symptoms can begin to occur as quickly as six hours after a person stops using. The full-blown effects tend to peak within 48-72 hours after the last use and then gradually subside within the next five to seven days. Early effects of withdrawal can include agitation, anxiety, sweating, muscle aches, and insomnia. In the later stages of withdrawal, people experience symptoms such as severe cramping, nausea, excessive vomiting, and diarrhea, in addition to the continuance of the symptoms that initially presented themselves.

If a person overdoses from heroin, they will require immediate medical treatment, including breathing support, fluids by IV, and medication. A person’s body temperature, pulse, blood pressure, and breathing rate can all be negatively affected by a heroin overdose.

Tragically, many heroin overdoses result in death.

I wanted to give this recommendation for Vantage Point. This hospital has been very good for me. They work very hard to make sure their patients are well taken care of. I felt lucky to be here for in-house stay and now for IOP. If you need help emotionally this is the place to be.

– a former client