There are some signs that someone you know may be suffering from heroin addiction. On the surface, your loved one may exhibit a loss of interest in personal hygiene, loss of appetite, acting sleepy or falling asleep at odd times, nausea or vomiting, slow breathing, or small pupils and heavy eyelids. Because the most predominant method of abuse is injection, there can be needle marks on certain part of the body that the user will attempt to hide from others. Skin bruising, as well as finding such things as syringes and burned metal spoons can be telltale signs that a loved one is abusing heroin.
While death is the most serious side effect associated with heroin abuse, more permanent damage can be done to the body in the form of: collapsed veins, infections of the heart lining and valves, skin infections, HIV/AIDS, hepatitis B, hepatitis C, and lung diseases like pneumonia and tuberculosis.