Clubbing Mnemonic

Clubbing, a clinical sign associated with various medical conditions, can be remembered using these five mnemonics:

1. “CLUB” Mnemonic:
   • C – Cyanosis (due to reduced oxygen)
   • L – Loss of Lovibond’s angle (nail angle flattening)
   • U – Uniform (nail plate thickening)
   • B – Bulbous (enlarged fingertip)
2. “WATCH” Mnemonic:
   • W – Warmth of fingertips
   • A – Anatomic (flattening of nail angle)
   • T – Thickened nail beds
   • C – Clubbed fingertips
   • H – Hyperconvex (curvature of the nails)
3. “FROST” Mnemonic:
   • F – Fingertips (enlarged)
   • R – Rounded (nail curvature)
   • O – Oxygen deprivation (cyanosis)
   • S – Softening of nail bed
   • T – Tissues (fingertip swelling)
4. “C-L-U-B-S” Mnemonic:
   • C – Cyanosis
   • L – Loss of Lovibond’s angle
   • U – Uniform nail plate thickening
   • B – Bulbous fingertip
   • S – Softening of nail bed
5. “DIGIT” Mnemonic:
   • D – Drumstick fingers (fingertip enlargement)
   • I – Increased nail curvature
   • G – Growth of the nail bed
   • I – Increased angle of the nail fold
   • T – Tissue proliferation under the nail