What causes tailbone pain

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Last updated: April 4, 2026

Quick Answer: Tailbone pain, also known as coccydynia, is most commonly caused by injury or trauma to the coccyx (tailbone). This can include direct blows, such as from a fall, or repetitive stress from activities like prolonged sitting on hard surfaces or cycling.

Key Facts

Overview

Tailbone pain, medically termed coccydynia, refers to discomfort and pain in the coccyx, the small, triangular bone located at the very end of the vertebral column. This type of pain can range from a dull ache to sharp, stabbing sensations, and it often worsens when sitting down, especially on hard surfaces. While the exact prevalence of tailbone pain is difficult to pinpoint, it is considered a relatively common ailment, with women being affected more frequently than men, possibly due to anatomical differences and the stresses of childbirth.

Common Causes of Tailbone Pain

The primary culprits behind tailbone pain are typically physical in nature. Understanding these causes is the first step toward effective management and relief.

Trauma and Injury

The most frequent cause of coccydynia is direct trauma or injury to the tailbone. This can occur in several ways:

Repetitive Stress and Pressure

Even without a specific traumatic event, certain activities can lead to gradual irritation and pain in the tailbone region:

Childbirth

Childbirth is a significant cause of tailbone pain, particularly in women. During vaginal delivery, the coccyx can be pushed backward to make more room for the baby to pass through the birth canal. This can lead to bruising, stretching of the surrounding ligaments, or even dislocation or fracture of the coccyx. The pain may persist long after delivery.

Obesity and Weight Fluctuations

Both being significantly overweight and experiencing rapid weight loss can contribute to tailbone pain. Excess weight can increase the pressure on the coccyx when sitting. Conversely, a sudden loss of the fatty tissue that cushions the buttocks can leave the bone more exposed to pressure and discomfort.

Degenerative Changes

As individuals age, the joints and tissues in the body can undergo degenerative changes. The joints connecting the coccyx to the sacrum can become arthritic or stiff, leading to pain and reduced mobility. This is more common in older adults.

Other Less Common Causes

While less frequent, other factors can also contribute to tailbone pain:

It's important to consult a healthcare professional if you are experiencing persistent tailbone pain to receive an accurate diagnosis and appropriate treatment plan.

Sources

  1. Coccydynia - WikipediaCC-BY-SA-4.0
  2. Tailbone pain - Symptoms and causes - Mayo Clinicfair-use
  3. Coccyx Pain (Coccydynia) - OrthoInfofair-use

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