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Minor fingernail and toenail problems are common. At one time or another, almost everyone has caught a nail on something, causing it to rip. Or they have smashed a finger in a door, leaving blood under the nail. These kinds of injuries can be quite painful, but they usually aren't serious. You can often relieve pain and prevent infection of minor nail problems at home.
Normally, fingernails grow about one-tenth of a millimeter each day. Toenails grow at about one-half or one-third the rate of the fingernails. Aging and diseases that decrease blood flow to the hands and feet may slow nail growth.
Common nail changes
Common changes to nails include:
Splitting, peeling, or brittle nails.
These are common problems that develop when your hands are often exposed to water, strong soaps, and other chemicals. You may be able to prevent some of these problems if you use lotion and avoid putting your hands in water often.
Color changes.
Little white marks (leukonychia) often appear after minor injuries. They may last for weeks or months. They usually go away on their own.
It's common for a nail to turn black after an injury. The black or purple-black color is caused by blood under the nail. It will go away as the injury heals.
Black, brown, or purple discoloration under a nail that has not been injured may be caused by melanoma, Opens dialog.
Changes in the shape or texture of nails.
These may occur for many reasons. Some nail changes, such as the forming of ridges, are normal with aging. Thick, brittle, or dark nails are more common in older adults who have poor circulation.
These are often caused by improper trimming, tight shoes, or heredity. Your nails may grow into the skin that surrounds them. This can cause pain, swelling, and infection, Opens dialog. In rare cases, an abscess, Opens dialog may form under a nail (subungual abscess).
Separation from the nail bed.
After your nail separates from its nail bed, no matter what the reason, it won't reattach. Nails grow back slowly. It takes about 6 months for fingernails and up to 18 months for toenails to grow back attached to the nail bed.
Infection and allergic reactions.
These are common problems caused by artificial nails. Remove the artificial nail if it causes problems.
They can vary in appearance depending on the type of fungus or the location of the infection. The infected toenail usually turns white or yellow. It's not unusual for fungal nail infections to follow athlete's foot, Opens dialog infections.
Nail-biting. It can lead to fingertips that are red and sore and cuticles that bleed. Nail-biting also increases the chance of bacterial infections around your nail beds and in your mouth.
Side effects of medicines, such as chemotherapy and antimalarial medicines.
Do you have a problem with your nails? Review health risks that may make any symptom more serious.
This means a problem that affects the nails only and not any other part of the limb (no other parts of the finger or hand or of the toe or foot).
Yes
Nail problem
No
Nail problem
How old are you?
Less than 12 years
Less than 12 years
12 years or older
12 years or older
Are you male or female?
Male
Male
Female
Female
The medical assessment of symptoms is based on the body parts you have.
If you are transgender or nonbinary, choose the sex that matches the body parts (such as ovaries, testes, prostate, breasts, penis, or vagina) you now have in the area where you are having symptoms.
If your symptoms aren’t related to those organs, you can choose the gender you identify with.
If you have some organs of both sexes, you may need to go through this triage tool twice (once as "male" and once as "female"). This will make sure that the tool asks the right questions for you.
Did you injure a nail?
This could include tearing a nail, separating a nail from the nail bed, or hitting the nail hard enough that blood collects under it.
Yes
Nail injury
No
Nail injury
Do you have pain under or around the nail?
Yes
Nail pain
No
Nail pain
How bad is the pain on a scale of 0 to 10, if 0 is no pain and 10 is the worst pain you can imagine?
Are there red streaks leading away from the area or pus draining from it?
Yes
Red streaks or pus
No
Red streaks or pus
Do you have an ingrown nail?
Ingrown means that the nail has grown into the skin instead of over it.
Yes
Ingrown nail
No
Ingrown nail
Have you had nail problems for more than 2 weeks?
Yes
Nail problems for more than 2 weeks
No
Nail problems for more than 2 weeks
Many things can affect how your body responds to a symptom and what kind of care you may need. These include:
Your age. Babies and older adults tend to get sicker quicker.
Your overall health. If you have a condition such as diabetes, HIV, cancer, or heart disease, you may need to pay closer attention to certain symptoms and seek care sooner.
Medicines you take. Certain medicines, such as blood thinners (anticoagulants), medicines that suppress the immune system like steroids or chemotherapy, herbal remedies, or supplements can cause symptoms or make them worse.
Recent health events, such as surgery or injury. These kinds of events can cause symptoms afterwards or make them more serious.
Your health habits and lifestyle, such as eating and exercise habits, smoking, alcohol or drug use, sexual history, and travel.
Try Home Treatment
You have answered all the questions. Based on your answers, you may be able to take care of this problem at home.
Try home treatment to relieve the symptoms.
Call your doctor if symptoms get worse or you have any concerns (for example, if symptoms are not getting better as you would expect). You may need care sooner.
Severe pain (8 to 10): The pain is so bad that you can't stand it for more than a few hours, can't sleep, and can't do anything else except focus on the pain.
Moderate pain (5 to 7): The pain is bad enough to disrupt your normal activities and your sleep, but you can tolerate it for hours or days. Moderate can also mean pain that comes and goes even if it's severe when it's there.
Mild pain (1 to 4): You notice the pain, but it is not bad enough to disrupt your sleep or activities.
Symptoms of infection may include:
Increased pain, swelling, warmth, or redness in or around the area.
Red streaks leading from the area.
Pus draining from the area.
A fever.
Certain health conditions and medicines weaken the immune system's ability to fight off infection and illness. Some examples in adults are:
Diseases such as diabetes, cancer, heart disease, and HIV/AIDS.
Long-term alcohol and drug problems.
Steroid medicines, which may be used to treat a variety of conditions.
Based on your answers, you may need care soon. The problem probably will not get better without medical care.
Call your doctor or telehealth provider today to discuss the symptoms and arrange for care.
If you cannot reach your doctor or telehealth provider or you don't have one, seek care today.
If it is evening, watch the symptoms and seek care in the morning.
If the symptoms get worse, seek care sooner.
What are your options for medical care?
Today your options for where to get your medical care are greater than ever before. You may not even have to leave your home to get the care you want and need. You can choose based on what your health problem is and what works best for you.
Telehealth is a video call with a health care provider. It can be a convenient way to get medical advice or treatment. Some insurers provide access to telehealth that may be available 24 hours a day. Telehealth for less serious problems may cost less and be faster than in-person clinic visits.
Urgent care and retail clinics are options if you don't have a doctor, you can't or don't want to wait to see your own doctor, or a telehealth visit can’t treat the problem.
Virtual care from your primary provider or a telehealth service can be delivered through your smartphone, computer, or tablet.
Based on your answers, you may need care right away. The problem is likely to get worse without medical care.
Call your doctor now to discuss the symptoms and arrange for care.
If you cannot reach your doctor or you don't have one, seek care in the next hour.
You do not need to call an ambulance unless:
You cannot travel safely either by driving yourself or by having someone else drive you.
You are in an area where heavy traffic or other problems may slow you down.
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Based on your answers, the problem may not improve without medical care.
Make an appointment to see your doctor in the next 1 to 2 weeks, or contact your telehealth provider.
If appropriate, try home treatment while you are waiting for the appointment.
If symptoms get worse or you have any concerns, call your doctor or telehealth provider. You may need care sooner.
What are your options for medical care?
Today your options for where to get your medical care are greater than ever before. You may not even have to leave your home to get the care you want and need. You can choose based on what your health problem is and what works best for you.
Telehealth is a video call with a health care provider. It can be a convenient way to get medical advice or treatment. Some insurers provide access to telehealth that may be available 24 hours a day. Telehealth for less serious problems may cost less and be faster than in-person clinic visits.
Urgent care and retail clinics are options if you don't have a doctor, you can't or don't want to wait to see your own doctor, or a telehealth visit can’t treat the problem.
Virtual care from your primary provider or a telehealth service can be delivered through your smartphone, computer, or tablet.
Home treatment often helps relieve pain, promote healing, and prevent infection. Treatment may involve removing the nail, keeping the area dry to prevent infection, and waiting for a new nail to grow. The infection or skin condition that caused the separated nail will also need to be treated.
File any sharp edges smooth, or trim the nail. This will help prevent catching the nail and tearing it more.
Trim off the detached part of a large tear, or leave the nail alone.
Cover the nail with tape or an adhesive bandage until the nail has grown out enough to protect the finger or toe.
If you trim off the detached nail, you will have less worry about the nail catching and tearing.
If you leave the detached nail in place, it will eventually fall off when the new nail grows in.
Use scissors to remove the detached part of the nail if the nail is partly attached.
Soak your finger or toe in cold water for 20 minutes after trimming the nail.
Apply a thin layer of petroleum jelly, such as Vaseline, and cover the area with a nonstick bandage.
To prevent infection:
Soak your foot or hand in a solution of 1 tsp (5 mL) of salt dissolved in 4 cups (1 L) warm water for 20 minutes, 2 or 3 times each day, for the next 3 days. Reapply petroleum jelly, and cover with a fresh adhesive bandage.
Keep the nail bed dry, clean, and covered with petroleum jelly and an adhesive bandage until the nail bed is firm or the nail has grown back. Apply a new adhesive bandage whenever the bandage gets wet.
Watch for signs of infection such as increasing heat, redness, pain, tenderness, swelling, or pus.
Remove an artificial nail if it separates from the nail bed. If you leave it on, the long, artificial nail can tear the nail bed.
Author: Ignite Healthwise, LLC Staff Clinical Review Board All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
Clinical Review Board All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
This information does not replace the advice of a doctor. Ignite Healthwise, LLC, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.
