Nail bed, nail andToenailThe base of the deep surface is the derived epidermis, which protects the nails andFingernailIts lower dermis is rich inblood capillary。
Normal stateThe nail is closely adhered to the nail bed skin. In case of some diseases or improper habits, the nail and nail bed can be separated.
If the inducement is removed and the nail is well protected, the separation of the nail and nail bed can gradually recover, and the nail bed will also grow.
in additionAbnormal thyroid functionIt can also cause nail bed separation, especiallyhyperthyroidismIf the hyperthyroidism factor is removed, the separation of nail bed can be stopped.
Some skin diseases such aspsoriasis 、Lichen planus、Atopic dermatitis Darley's disease, although it occurs on the skin, will also invade the nails, causing the nail bed door to open widely and the nail bed to separate, so the doctor will carefully examine the skin of other parts of the body to find out whether the above skin diseases are combined.
Undernail tumor:Fibroma, glomus choroides tumorHemangioma, malignant squamous cell carcinomaMalignant melanomaWait, although the probability is not high, especially malignantSkin cancerIt is the first sign of nail bed separation, and should not be taken lightly.
In addition, it lacks sometrace element, may also cause nail bed separation.
Exogenous
1. External contact with irritants is the most common cause of nail bed separation, so this form of nail bed separation occurs in fingernails, rarely in toenails. Professionally, housewives, maids, laundry womenBeautician、Nursing staff, construction workers and other working groups that need time to contact water and chemicals.Among the contact substances, cosmetics commonly used in nails are most easily ignored. Some beauty loving women use nail polishAcrylic acid、formaldehydeFormaldehydetolueneSulfonamide, used for adhesionArtificial nailAcrylic Nail Or the glue used to carve nails and polish the wateracetone；Other daily life may cause wet handsSoakageSoapDetergentFresh food, especiallycitrusClass, onionTaro, cement, includinghydrocarbonPetroleum products are all possible culprits, and should be avoided if suspected.Many nail polish and nail polish ladies have reported that nail bed separation occurs after nail polish and nail polish, so nail polish should be cautious.
2. External force injury: external force stimulation is more common in toenails. Some violent sports such as running, tennis, basketball, badminton and other back and forth movements that need to run quickly and stop quickly will unknowingly cause separation of toenails and nail beds. Without knowing it, they often do not leave any traces of trauma and bleeding, so it is difficult to even think of the reason.Mechanical changes: lower limbs of human bodybiomechanicsIt will change with age, posture and aging, such as lower limb edemaarthritisIt changes the direction of force applied on the feet. As time goes by, it affects the direction of force applied on the toes, causing the direction of toenail growth to curl and separate the nail bed. Wearing high-heeled shoes, ill fitting shoes, and pointed wrapped shoes are all factors that worsen nail bed separation. Dirt and dirt are often stuck in the nails. Avoid using toothpicks or sharp tools to pick out the black dirt under the nails,It is easy to damage the nail joint by mistake.
3. Infection:
mould: caused by mold parasitismathlete 's foot, and then from foot skin to nailringworm of the nails, in the cracks of the nail bed,Rapid propagationIn time, it will lead to loose nails and separation of nail bed. Although onychomycosis is quite common, to diagnose onychomycosis, it is necessary to conduct routine mold inspection to confirm the existence of mold, and then give medication.
Bacteria:Pseudomonas aeruginosa、staphylococcusThe most common is that bacterial infection often invades in succession after the nail bed is separated. Generally, it is not the culprit, but often occurs in the hands of people who touch water.
NorwegianScabies: Parasitic nail beds can also be caused, but are rare in common people andgeneralityScabies.
4. Drugs: newly developed in recent yearsAnticancer drugOr reported drugs such as SoralenVitamin A acidIt is also the common culprit of nail bed separation. After several antibiotics are taken orally, they are exposed to light. They are transparent and protrude on the nailmelaninUnder the condition of blocking, like amagnifier, produce the focusing effect, strengthen the light penetration, and produce on the nail bedphotochemistryReaction, and then the nail bed is injured, causing photochemical nail bed separation. In this case, it can be smearedOpaqueOfNail PolishOr nailssun blockProtect and prevent,.
Therapeutic principles
Announce
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1、 Find out the cause and improve it.
2、 Avoid frequent contact with water and irritating chemicalsmaterial, handle fresh food, form the habit of wearing double gloves, first wear cotton gloves, then put rubber gloves on the outside, do not useNail Polish, water removal,Acrylic Nail 。
3、 Always cut nails. Too long nails cause pressure center of gravity due to lever principleInward shift, easy separation of nail bed, difficult reconnection.However, do not cut your nails to the end. Leave more than 1-2 mm free nails.
4、 Be careful of nail injury and wear lesshigh-heeled shoesWitch shoes should be fitted with wide head shoes. They should not walk quickly and stop quickly. If they are overweight, they should lose weight.
5、 Pay attention to the habit of using nails. Avoid picking things with your nails frequently. When scratching, do not scratch your nails back and forth. You should scratch along the outside of your nails.
6、 If you can do fungal and bacterial tests, it may be best to eliminate infection. In addition, you can also doThyroid function testandTrace element inspectionTo eliminate possible factors.If necessary, X-ray, skin slice and exclusiontumour。
6、 Some drugs are also easy to lead to separation of nail bed. If you take drugs, provide doctors with reference.
7、 The separation of nail bed needs to change the living habits and treatment, which may take a long time to recover gradually. Persistence is very important.
People often seeNail bed separation，Intuitive responseyesringworm of the nailsIn fact, it is not always the case. All the reasons should be clarified first. The chances of curing nail bed separation disease, which has been delayed for a long time, will be less and less.
Red: The nail bed is red and red, indicating the syndrome of qi and blood heat. Those who are red and moist are slightly ill, while those who are red and withered are seriously ill.Hemorrhage of nail bed also belongs to red nail, ifFree margin of nailThe spindle forms a longitudinal linear hemorrhage, which can be seen inCoagulation dysfunction、Drug allergy, subacute endocarditis, etc.
yellow
Yellow: nail bed yellow, promptDamp heatFumigation。Yellow and bright, indicating that the disease is mild and the course of disease is short.Dark yellow indicates serious disease and long course of disease.Yellow beetle can be seen in liver and gallbladder diseases, hemolysisHypothyroidism, chronic adrenal insufficiencyNephrotic syndrome、CarotenemiaEtc.
Cyan
Cyan: nail bed is blue, promptCold syndrome, blood stasis, pain syndromeconvulsions。Seen in hypoxia or useAtipine、Phenolphthalein。After a long illness, the body is green and withered, which indicates that the liver qi will be exhausted,Poor prognosis。
black
Black: The nail bed is blackened, which is the main cold syndrome, blood stasis and pain syndrome.Black nails appear after a long illness and wither without luster, indicating thatKidney qiHe will die, and his illness is dangerous.One or several thin and black vertical lines appear on the nail surface, indicating thatEndocrine disorder, can be seen in menstrual disordersdysmenorrhea, malignant tumorRadiation sicknessEtc.canceracceptradiotherapy、chemotherapyAfter each treatment, a black mark can be formed on the nail, and each treatment is recorded circle by circle.
Red and whiteHalf and half armour: The distal end of the nail is reddish brown, and the proximal end of the deck is glass white, with clear boundaries, which is common in cirrhosisAzotemia。
