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7 Causes Of Coccydynia Or Tailbone Pain You Should Know

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Do you have a desk job and generally sit for long hours to complete your work? Have you experienced an inexplicable pain in your lower back? Is this pain causing difficulty in sitting or bending?

If the answer to all of the above questions is yes, then you probably should not overlook this discomfort. You may be experiencing tailbone pain or coccydynia.

Coccydynia or tailbone pain is pain and tenderness that you experience at the tip of your tailbone. It is caused when the coccyx or the surrounding tissue is damaged.

The coccyx can be damaged in various ways. In many cases, it is difficult to know the exact cause.

Causes Of Coccydynia

The most common causes of coccyx damage are listed below.1

1. Childbirth

Childbirth Causes Coccydynia

One of the most common causes of coccydynia is childbirth.2 The coccyx becomes more flexible toward the end of pregnancy. This causes the coccyx and the area of the spine above it to bend and give way during birth. In some cases, the pressure can cause the muscles and ligaments around the coccyx to overstretch, resulting in persistent pain. This may result in coccydynia.

2. Coccyx Injury

Coccyx Injury Causes Coccydynia

A coccyx injury is likely if someone has experienced a trauma like a slip or a fall.3 If a person falls down or slips, landing on the buttocks, there is a possibility of injuring the coccyx and the tissues around it.

If you suffer a hard blow to the base of your spine, it causes coccyx injury. This usually occurs in activities like contact sports like football, ice or field hockey, wrestling, basketball, and others.

In most cases, a coccyx injury is mostly a bad bruise. However, depending on the impact of the hit or kick, the coccyx may be dislocated (out of place) or fractured (broken).

3. Repetitive Strain Injury (RSI)

Repetitive Strain Injury (RSI) Causes Coccydynia

You may experience coccydynia if you take part in sports such as rowing or cycling. These sports require you to continually lean forward and stretch your spine.

The repetitive motion can cause the muscles and ligaments around the coccyx to become strained and stretched. Straining the muscles and ligaments can cause permanent damage. If this happens, they will not be able to keep the coccyx in place, causing pain and discomfort. Early precautionary measures such as proper padding or limiting the hours spent on strenuous activities can prevent long-term effects.

Cold temperatures and vibrating equipment may worsen the symptoms of RSI.

4. Poor Posture

Poor Posture Causes Coccydynia

Poor posture includes slouching, rounded shoulders, hunchback, tilting head forward, sitting inappropriately, and the like.

Sitting continuously for a very long duration, like at work (if you have a desk job) or while driving, can put excess pressure on the muscles and coccyx. This generally gets worse if you sit for long in the same, undesired position.

Pain resulting from bad posture does not turn chronic unless you correct your posture. It is advisable to stick to the right postures from a young age to avoid the risk of coccydynia.

5. Being Obese Or Lean

Being Obese Or Lean Causes Coccydynia

Weight has a high correlation with the amount of pressure on the coccyx, which translates to pain. So, being overweight can cause coccydynia.4 A body mass index (BMI) higher than 29.4 in men and 27.4 in women can increase the risk of coccydynia. Also, the extent of pelvic rotation is less in people who are obese, meaning there is continual stress, leading to pain.

However, when you are underweight, you do not have enough fat around your buttocks to prevent your coccyx from rubbing against the tissues surrounding it. So, you may also suffer from tailbone pain if you are underweight.

6. Old Age

Old Age Causes Coccydynia

As we age, the cartilage discs that help hold the coccyx in place begin to wear out. The bones that make up the coccyx may also become more tightly fused together. This can cause more stress on the coccyx and result in pain.

7. Infection Or Cancer

Infection Or Cancer Causes Coccydynia

Rarely, an infection may occur at the base of your spine or soft tissue and cause coccydynia. An infection can be caused due to a pilonidal cyst, which usually occurs very close to the buttock area. This may cause pilonidal abscess – a painful collection of pus formed in the anal cleft.

Another rare cause of coccydynia is bone cancer or cancer that begins in one area in the body and spreads to the tailbone. Chordoma is a rare type of cancer that occurs in the bones of the skull base and spine and causes coccydynia. In the spine, it can be anywhere between the head and the tailbone.5

If the pain near the tailbone prevails, do not ignore it. Consult your doctor, and get treated before the pain turns chronic.

References   [ + ]

1. Causes of coccydynia (tailbone pain). National Health Services (NHS) Choices.
2. Maigne, J. Y., F. Rusakiewicz, and M. Diouf. “Postpartum coccydynia: a case series study of 57 women.” European journal of physical and rehabilitation medicine 48, no. 3 (2012): 387-392.
3.  Maigne, Jean-Yves, Levon Doursounian, and Gilles Chatellier. “Causes and mechanisms of common coccydynia: role of body mass index and coccygeal trauma.” Spine 25, no. 23 (2000): 3072-3079.
4. Maigne, Jean-Yves, Levon Doursounian, and Gilles Chatellier. “Causes and mechanisms of common coccydynia: role of body mass index and coccygeal trauma.” Spine 25, no. 23 (2000): 3072-3079.
5. Understanding Chordoma. Chordoma Foundation.