Image of rotting teeth, the effect of meth mouth.Photo by ©

These are just some of the problems meth can cause:


Meth can make your body so hot that you pass out. Sometimes this can kill you.

Crank Bugs

Meth can make you feel like bugs are crawling on or under your skin. It makes you scratch a lot. Scratching causes sores on your face and arms.

Meth Mouth

People who use meth can break, stain, or rot their teeth. They often drink lots of sweet things, grind their teeth, and have dry mouth. This is called "meth mouth."

Looking Old

People who use meth can start looking old. They burn a lot of energy and don't eat well. This can make them lose weight and look sick. Their hands or body might shake. Their skin looks dull and has sores and pimples that don't heal. Their mouth looks sunken as the teeth go bad.

HIV/AIDS, Hepatitis

People who inject meth can get HIV/AIDS or hepatitis (a liver disease) if they share used needles. People also get these diseases by having unsafe sex. They often forget to use condoms because they're high on the drug.


People can overdose on meth when they take too much of it. Sometimes drug dealers add other dangerous chemicals to meth that can help cause an overdose. They might get so hot that they pass out. If they don’t get help right away, they can die. A meth overdose can also cause a stroke (“brain attack”), heart attack, or liver failure. These can all cause death.


You can become addicted to meth. Over time, it can change the way your brain works. If you stop using meth, your body can get confused and you can start to feel really sick. This makes it hard to stop. This is called addiction.

People who get addicted to meth start needing to take more of it to get the same high. People who usually snort meth or take it by mouth might start to smoke or inject it to get a stronger, quicker high.

Meth use can hurt different parts of your brain. It can cause thinking and emotional problems that don't go away. Even after you quit using meth, the thoughts can come back. For example, you might feel, hear, or see things that aren't there. You might think that people are out to get you or start believing strange ideas that can't really be true.

People who are trying to quit taking meth might:

  • feel sad
  • get really tired but have trouble sleeping
  • feel angry or nervous
  • be unable to feel happy

They will feel a very strong need to take the drug.

Fortunately, there is counseling that can help someone with a meth addiction.

Remember that even if you get treatment, it can be hard to stay off the drug. People who stopped using meth can still feel strong cravings for the drug, sometimes even years later. This is normal. This is also why it’s important to stay in treatment for as long as your doctor suggests.