Nail problems are not usually caused by anything serious. Common nail problems include brittle, loose nails that may change colour or shape.
It's normal for nails to:
- become thicker or break more easily (brittle) as you get older
- become harder, softer or more brittle during pregnancy (they should be healthier within 6 months of having a baby)
- change colour, become loose and eventually fall off after an injury
Fingernails that fall off after an injury should grow back within 6 months. Toenails can take up to 18 months.
There are some things you can do to help with common nail problems.
wear rubber gloves if your hands are often in water or you regularly use cleaning products
clean your nails with a soft nailbrush
regularly apply hand cream to your nails and fingertips
regularly trim your nails (it may help to cut them after a shower or bath)
cut injured, loose nails back to where they are still attached, as this helps them to grow back normally
do not cut your nails down the edges, and only trim straight across the top to help avoid an ingrown toenail
do not clean under your nails with sharp objects
do not wear shoes that pinch your toes, especially when exercising
do not bite or pick your nails or the skin around them
do not ignore fungal infections on your skin, such as athlete's foot
You can also watch a video about how to look after your toenails on the Health and Care Video Library.
Most nail problems are caused by:
- injuries or biting your nails
- staining your nails, for example, by smoking or applying a lot of nail varnish
- not regularly trimming your nails, or cutting them at an angle
- your hands often being in water or cleaning products
- a fungal nail infection
Nail problems can sometimes be a symptom of a more serious or long-term condition, such as:
- nail psoriasis
- iron deficiency anaemia
- an underactive thyroid or overactive thyroid
- heart, lung or liver disease
Some medicines can also cause nail problems. Check the side effects of any medicine you're taking.
See pictures of nails that have changed shape
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