Coccydynia

Spine

Overview

Coccydynia is pain localized to the coccyx (tailbone) and surrounding tissues, typically resulting from trauma, prolonged sitting pressure, or idiopathic causes. The condition affects the distal sacrococcygeal region and can significantly impact sitting tolerance and quality of life. Management focuses on reducing mechanical stress, addressing myofascial restrictions, and restoring normal biomechanics.

Pathophysiology

Pain originates from the coccyx, sacrococcygeal joint, or surrounding soft tissues including the coccygeus muscle, levator ani, and external sphincter. Common causes include direct trauma (falls, childbirth), repetitive microtrauma from prolonged sitting, or hypermobility of the sacrococcygeal joint. Inflammation, muscle spasm, nerve irritation (particularly the coccygeal plexus), and postural dysfunction contribute to symptom perpetuation. Anatomical variations and poor sitting posture increase vulnerability.

Patient Education

Coccydynia often improves with activity modification, proper sitting ergonomics (avoiding direct pressure on the coccyx using cushioned rings or wedges), and addressing underlying postural and muscular dysfunction rather than complete rest.

Typical Presentation

Site

Localized pain at the coccyx, with possible referral to sacrum, gluteal region, or perineum; pain may be unilateral or bilateral

Quality

Sharp, aching, or throbbing pain; may feel tender to palpation; occasionally described as burning if nerve involvement present

Intensity

Mild to moderate, often worsening throughout the day; typically 4-7/10 intensity that fluctuates with activity

Aggravating

Prolonged sitting (especially on hard surfaces), direct pressure to the coccyx, forward bending, defecation, sexual intercourse, certain positions during childbirth or labor

Relieving

Standing or walking, lying supine with hips flexed, use of coccygeal cushions or donut pillows, heat application, osteopathic treatment

Associated

Postural dysfunction (excessive lumbar lordosis, sacral tilt), muscle tension in gluteals and pelvic floor, sacroiliac joint dysfunction, limited hip flexion, constipation or straining patterns

Orthopaedic Tests

Coccygeal Palpation

Procedure

Patient positioned prone or in left lateral decubitus. Clinician palpates the coccyx directly with gloved finger via the rectum or externally over the sacrococcygeal region to elicit tenderness.

Positive Finding

Reproduction of pain or tenderness over the coccyx during palpation

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Establishes local coccygeal tenderness; confirms anatomical source but lacks specificity for differentiating coccydynia from other sacral/pelvic pathology. High clinical utility for initial diagnosis.

Coccygeal Mobilisation Test (Anterior-Posterior Glide)

Procedure

Patient prone or lateral. Clinician stabilises the sacrum with one hand and applies gentle anterior or posterior glide to the coccyx via intrarectal or external palpation to assess mobility and provoke symptoms.

Positive Finding

Pain reproduction, restriction of motion, or hypermobility of the coccyx relative to the sacrum

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Identifies coccygeal dysfunction and mechanical restriction; guides treatment direction. Positive findings suggest coccygeal fixation or instability contributing to pain.

Straight Leg Raise (SLR) Test – Contralateral Side

Procedure

Patient supine. Clinician passively elevates the contralateral (opposite) leg with knee extended to assess for referred coccygeal pain via stretch of hamstring and sciatic nerve.

Positive Finding

Reproduction of coccygeal pain during contralateral SLR, especially if ipsilateral SLR is pain-free

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Helps differentiate referred pain from neural tension (e.g., piriformis syndrome, sciatic tension) versus primary coccygeal dysfunction. Positive contralateral SLR suggests neural irritation.

Seated Flexion-Extension (Coccygeal Range of Motion)

Procedure

Patient seated on firm surface. Clinician palpates coccyx externally while patient performs active forward flexion (trunk flexion) and extension, observing coccygeal motion.

Positive Finding

Reduction in coccygeal excursion, pain during movement, or asymmetrical motion

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Assesses coccygeal biomechanics during functional movement. Restricted or painful motion indicates mechanical dysfunction; guides manual therapy and ergonomic advice.

Ischial Tuberosity Palpation Test

Procedure

Patient seated or supine with hip flexed. Clinician palpates the ischial tuberosities and surrounding soft tissues (piriformis, obturator internus) to identify myofascial trigger points or referred pain patterns.

Positive Finding

Tenderness of ischial tuberosities, piriformis, or obturator internus; reproduction of coccygeal pain via referred mechanism

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Identifies myofascial sources of referred coccygeal pain. Positive findings suggest muscular contributions (gluteal muscle tightness, piriformis syndrome) as pain generators.

Sacroiliac Joint Palpation & Mobility

Procedure

Patient prone. Clinician palpates sacroiliac joint margins and applies gentle mobilisation tests (e.g., anterior-posterior glide) to assess joint play and reproduce symptoms.

Positive Finding

Sacroiliac joint tenderness, altered mobility, or reproduction of coccygeal pain

Sensitivity / Specificity

Unknown / Unknown

Interpretation

Evaluates for concomitant sacroiliac dysfunction contributing to coccygeal pain. Positive findings suggest need to address proximal mechanical dysfunction affecting coccygeal biomechanics.

⚠ Red Flags

  • •Severe trauma with signs of fracture or dislocation
  • •Loss of bowel/bladder control or progressive neurological symptoms suggesting cauda equina involvement
  • •Signs of infection (fever, localized heat, rapidly spreading erythema)
  • •Unexplained weight loss or constitutional symptoms suggesting malignancy
  • •Progressive neurological deficit in lower limbs or saddle anesthesia
  • •History of cancer with new onset coccygeal pain

⚡ Yellow Flags

  • •High pain catastrophizing or fear-avoidance beliefs about sitting
  • •Significant distress disproportionate to clinical findings
  • •History of childhood trauma or abuse
  • •Chronic pain mindset with excessive focus on the symptom
  • •Depression or anxiety interfering with recovery
  • •Pending litigation or compensation claim
  • •Unrealistic expectations of rapid cure through passive treatment alone

Osteopathic Techniques

Region

Coccyx and sacrococcygeal joint

Technique

Soft Tissue

Rationale

Gentle soft tissue mobilization of coccygeus muscle, external anal sphincter, and surrounding fascia reduces myofascial tension and improves local circulation. Intrarectal technique (with consent) addresses deep pelvic floor muscles contributing to pain perpetuation.

Region

Sacrococcygeal joint

Technique

Articulation

Rationale

Gentle articulation and mobilization of the sacrococcygeal joint restores normal segmental mobility, reduces joint hypermobility-related irritation, and improves synovial fluid distribution to facilitate healing.

Region

Gluteal region and hip

Technique

MET

Rationale

Muscle energy technique applied to piriformis, gluteus maximus, and hip external rotators reduces secondary muscle guarding that perpetuates coccygeal pain through fascial tension.

Region

Lumbar spine and sacrum

Technique

Soft Tissue

Rationale

Addressing erector spinae, quadratus lumborum, and sacral fascia reduces compensatory tension patterns that increase sacrococcygeal joint loading and coccygeal pain.

Region

Pelvic floor and levator ani

Technique

Functional

Rationale

Functional technique to normalize pelvic floor tension patterns, particularly in patients with excessive guarding or paradoxical muscle contraction contributing to coccygeal dysfunction.

Region

Sacroiliac joint and lumbosacral region

Technique

HVLA

Rationale

Careful HVLA to sacroiliac joint (when appropriate) may improve sacral positioning and reduce compensatory stress on the sacrococcygeal joint; requires thorough assessment and contraindication screening.

Add-On Approaches

Chinese Medicine

TCM recognizes coccydynia as a qi and blood stagnation pattern in the Du Mai (Governing Vessel) and Conception Vessel meridians; acupuncture to points such as GV4 (Mingmen), GV1 (Changqiang), and local points may promote circulation and reduce pain

Chiropractic

Sacral and coccygeal adjustment techniques may improve sacrococcygeal joint alignment; chiropractic emphasis on pelvic alignment and posture supports mechanical correction

Physiotherapy

Progressive pelvic floor relaxation and coordination training, core stability exercises, postural re-education, and ergonomic counseling form the foundation of physiotherapy management

Remedial Massage

Deep tissue massage to gluteals, hip external rotators, and lower back combined with myofascial release techniques addresses muscular restrictions and improves local tissue mobility

Rehabilitation Exercises

Coccyx-Friendly Hip Flexor Stretch (Kneeling Lunge Position)

StretchingBeginner

Piriformis Stretch (Supine Figure-4)

StretchingBeginner

Pelvic Floor Release (Child's Pose Variation with Deep Breathing)

StretchingBeginner

Hip Pendulum Swings (Supported, Gentle Mobilization)

Range of MotionBeginner

Neutral Spine Sitting Awareness Training (With Coccygeal Cushion)

PosturalBeginner

Transversus Abdominis Activation (Supine Breathing with Light Contraction)

StrengtheningBeginner

Gluteus Maximus Bridge (Supine, Controlled Activation)

StrengtheningIntermediate

Core Stability Series (Dead Bug Progression)

StrengtheningIntermediate

Quadruped Rocking (Gentle Anterior-Posterior Weight Shifts)

BalanceIntermediate

Standing Posture Reset (Neutral Pelvis, Lumbar Curve Awareness)

PosturalBeginner

Walking Program (Starting with Short, Frequent Bouts)

CardiovascularBeginner

Gluteal Complex Stretch (Supine Hip Adduction with Knee Bent)

StretchingIntermediate

Referral Criteria

  • •Persistent symptoms unresponsive to 4-6 weeks of conservative osteopathic and physiotherapy management
  • •Suspected fracture or significant structural damage requiring imaging confirmation and orthopedic evaluation
  • •Progressive neurological symptoms or signs of nerve root compression requiring neurosurgical assessment
  • •Signs of infection or abscess requiring medical investigation and possible imaging
  • •Symptoms following childbirth with concerns about obstetric-related injury or pelvic floor dysfunction requiring pelvic floor physiotherapy specialist
  • •Psychological distress, catastrophizing, or psychosocial barriers to recovery requiring mental health assessment
  • •Suspicion of malignancy or other systemic pathology warranting imaging and medical oncology referral
  • •Consideration of coccygectomy when conservative management has failed over 6-12 months (surgical referral to colorectal or orthopedic surgeon)