These tips concern routine toenail trimming. A painful, swollen or already ingrown nail needs assessment; cutting out its corner yourself does not replace a consultation.
Trimming a healthy nail
Trim the free edge straight across without deeply rounding the sides. Do not try to cut the part hidden beside the nail fold. A small sharp edge can be carefully smoothed with a file.
Do not cut the nail down to the skin. Choose a length that avoids shoe pressure without exposing sensitive tissue. There is no single length suitable for every nail.
Use clean tools in good condition, with good lighting and your foot supported. If you cannot see the edge clearly, cannot reach your nails or they are too hard, ask for help with trimming.
If the nail is already ingrowing, stop trying to cut it out at home. Choose shoes with room for your toes. A recurring problem deserves assessment even when the pain has temporarily stopped.
When should you contact a doctor?
Pus, increasing swelling or fever require medical assessment. If you have diabetes and an ingrown toenail, consult a doctor. Avoid tight shoes and cutting down the sides of the nail yourself.
Further information
- Ingrown toenails — causes, symptoms and ways to help
- Ingrown toenails and nail braces
- Toenail trimming and filing
Medical sources: NHS — Ingrown toenail.
Editorial update: .