Artificial Nails in Obstetrics/Gynecology: Infection Risks & Policy Guidance

Healthcare organizations increasingly restrict artificial nails due to infection prevention evidence.

Evidence Against Artificial Nails

• Microbial harbor: Subungual space harbors 10–100× more bacteria (Gram-negative, yeast) than natural nails.
• Hand hygiene failure: Long/artificial nails impede proper scrubbing/rubbing; WHO "5 Moments" compliance drops.
• Glove integrity: Sharp edges puncture gloves → barrier breach.
• Outbreaks linked: NICU Pseudomonas, OR Serratia, dialysis Candida traced to artificial nails on staff.

Major Guidelines

• CDC/HICPAC: "Natural nails <¼ inch; no artificial nails/extenders for high-risk areas (OR, ICU, nursery)."
• WHO: "Short, natural nails; no artificial nails or nail polish (chipped polish harbors microbes)."
• AORN (OR nurses): No artificial nails, gel, shellac, extenders. Natural nails short.
• ACOG: Endorses CDC; recommends institutional policies for L&D, OR, nursery.

OB/GYN Specific Risks

• Vaginal exams, deliveries, cesareans, neonatal contact — high transmission potential.
• Group B Strep, HSV, GBS, E. coli, Candida — vulnerable populations.
• Suturing, instrument handling — glove puncture risk.

Policy Implementation

• Written policy: natural nails ≤2 mm beyond fingertip, no artificial, no polish (or only fresh, intact).
• Pre-employment / annual competency includes nail inspection.
• Alternative: nail wraps (still discouraged), press-ons (same risks).
• Accommodation for cultural/religious? Engage infection prevention + HR; patient safety prevails.

Bottom line: Artificial nails are incompatible with safe obstetric/gynecologic practice. Most hospitals prohibit them for all direct-care staff.