Dismiss Modal

Understanding Healthcare

Understanding the Pain Response

Choose a preferred language

Your pain is important. It can slow healing and keep you from being active. You may have acute or chronic pain. Both types of pain respond to treatment. Work with your health care professional. Together you can find relief.


Types of pain

Acute pain is caused by a health problem or injury. The pain usually goes away when its cause is treated. You may have pain:

  • From an illness or injury that needs emergency care.

  • After an operation, such as heart surgery.

  • During and after the birth of your baby.

Chronic pain lasts for longer than 3 months. It can be caused by a health problem or injury, such as arthritis or a shoulder strain. Chronic pain can also exist without a clear cause.


Your perception of pain

Pain is a complex phenomenon that involves many of the chemicals found naturally in the spinal cord and brain. All pain signals travel to the brain. The brain sends back signals to protect the body. The brain also makes its own painkillers (endorphins). These can help reduce the pain.

Outline of human figure showing brain and spinal cord. Arrows show pain signals to and from brain.

  1. Pain starts in one or more parts of the body. In some cases, the site of the pain is far from its source.

  2. Pain signals move through nerves and up the spinal cord.

  3. The brain reads the signals as pain. Natural painkillers are released.

  4. The feeling of pain can be reduced in this way.

© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

Find a doctor that's right for you.

From routine check-ups to groundbreaking treatments and beyond, Crestner Health is here to help you live your healthiest life.

Search our doctors
Related Articles
Read article
Wellness
Communicating About Pain

Discuss your pain with your healthcare provider so you can receive treatment to help you relieve pain or reach a pain level you can live with.

Read article
Wellness
Complementary Care for Pain

Alternative treatments for back pain include massage, chiropractic and acupuncture.

Read article
Wellness
Understanding an Intrathecal Pain Pump Implant

An intrathecal pain pump implant is a way to relieve some kinds of long-term pain or cancer pain. It sends pain medicine through a thin, flexible tube. The tube is inserted into the space around the spinal cord.

Read article
Wellness
Continuous Epidural Infusion for Pain Relief

Continuous epidural infusion is a way to give pain medicine. The medicine is sent to the spinal cord and nerves. This is done through a soft tube (catheter). The catheter is put in the spine into the epidural space, which surrounds the spinal cord.