Coccygeus

Looks like

A triangular muscle at the back of the pelvic floor, from the ischial spine to the edge of the sacrum and tailbone.

What it does

Supports the pelvic floor and steadies the tailbone.

Keeping it well

Can be a source of tailbone pain; sitting cushions and physiotherapy help. Pain with numbness in the saddle area is urgent.

Related conditions

• Bone metastases and spinal cord compression
• Botulism
• Chronic constipation
• Fibromyalgia
• Frailty & falls in older age
• Heat exhaustion & heatstroke
• Malnutrition & refeeding syndrome
• Muscular dystrophy
• Pelvic organ prolapse
• Polymyalgia rheumatica
• Prostatitis & pelvic pain
• Rectal prolapse
• Rhabdomyolysis
• Sarcoma
• Sarcopenia
• Tetanus