Splinter Removal:Idiopathic digital apoplexy, also called digital venous apoplexy, is a spontaneous hematoma of a finger. The people most affected are women between 30 and 60 years of age.
At the level of a finger, a small vein breaks, causing a haemorrhage under the skin. The onset is abrupt, with possible onset of pain and swelling.
The finger then becomes blue or black, as if it had suffered a trauma.
Most of the time, there is no particular cause for this hematoma. This is what I am worried about. But its appearance is often favoured by micro-trauma (ring, hand tightening.
WHAT TO DO?
Evolution will always be without gravity. The hematoma will subside in ten days, changing colours. There is no assessment, no special treatment. Splinter Removal
Cracking fingers: the mystery of the bursting bubble elucidated Two Polytechnique researchers have just proved by A plus B how the fingers crack. A bubble storey elucidated by the greatest chance.
The mystery of the creaking of the joints has just been elucidated: when you bend your fingers to make them crack, the noise you hear is that of microscopic bubbles that burst and not that of bones!
This enigma is Abdul Barakat, professor at the École Polytechnique, who has just solved it with one of his students, a little by chance: “One day, as I proposed different subjects of study to my students, one of them, Vineeth Chandran Suja, who was hardly inspired, began to think, mechanically cracking his fingers. He saw himself doing it and said to me: But that’s what interests me: to understand my creaking fingers! “Banco,” replied his teacher.
Vineeth, the brilliant Indian student – now a researcher at Stanford – therefore locked himself up, gathering up his comrades, in an acoustic chamber to study the sound produced by their own joints.
What impact on health?
A year and a half later, the mathematical model explaining the phenomenon was born: “Between all our joints, there is a natural lubricant called synovial fluid. When you stretch your fingers, a depression forms, generating bubbles.When the joint returns to its place, these bubbles burst. Our model shows in particular that the small tac that we hear occurs at the precise moment when the bubble is under pressure and begins to burst and that the bursting of only one of these bubbles is sufficient to produce this noise”, sums up Abdul Barakat.
Cracking fingers: the mystery of the bursting bubble elucidated
This hypothesis of bubbles present in the joints had already been made in 1971. The study published by the two researchers, in the journal “Scientific Reports”, is the first to explain it in a mathematical way.
At least one in two people would practice finger crunching. Is it dangerous for cartilage? On this, the two scientists do not comment. A priori no, as demonstrated by a Californian allergist crowned by the Ig Nobel 2009 of medicine, this parody prize of the Nobel.
Conversely, an American study, based on the hands of 300 people over the age of 45, showing that 84% of those who suffered from inflammation had this habit.
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Trauma to the fingernail and fingertip-Splinter Removal
Trauma to the nail and the tip of the fingers includes various injuries: hematoma, wound, pulling out of a nail. Their nature depends on the type of accident: finger trapped in a door, hammer blow, nail turned over. Most often, it is possible to treat the lesions yourself.
WHAT IS NAIL AND FINGERTIME TRAUMA?
Trauma to the nail and the tip of the fingers are the cause of various injuries: hematoma or foreign body under the nail, sore finger, tearing of a nail, broken phalanx.
Trauma is most often of accidental origin:
For example, damage to the nails and fingers can follow a finger trapped in the hinge of a door, or be caused by a tool used in the context of work or leisure (hammer blow, saw cut In children, trauma by crushing the last phalanx of the fingers when closing a door or “door finger” accounts for 3.5% of domestic accidents, mainly in children under the age of five.
Sometimes the lesions appear as a result of microtrauma. If the microtrauma is occasional, the injuries of low intensity are not very noticeable. On the other hand, if the microtrauma is repeated, it causes lesions of the nail. This is, for example, the case when the toe rubs for a long time at the end of the shoe.
What is a nail for?
The nail (or nail tablet) consists of keratin produced by its root; it rests on the nail bed. Its fixed edges are surrounded by a skin fold called “nail fold”.
It has several important functions
it protects the distal phalanges of the fingers and toes;
it ensures the aesthetics of the foot and / or the hand;
it facilitates the recognition and the taking of small objects by the fingers;
it makes walking and running easier;
it is an instrument for scraping, even for defence.
DIFFERENT TYPES OF TRAUMATIC NAIL DAMAGE
Splinter Removal-Subungual hematoma
The most common lesion is a hematoma under the nail (subungual hematoma). It is a spill of blood, the equivalent of what is called a “blue” under the skin.
The nail (or nail tablet) is located above an area called a nail bed rich in blood vessels. As a result of a shock, he may be injured and start to bleed. It leads to the formation of a hematoma, which takes the form of a bluish-blackish spot under the nail. Its size can reach almost the entire nail if the bleeding is heavy. In this case, the nail is black.
After the shock, the pressure of the blood under the nail is responsible for the pain that manifests itself either continuously or in the form of regular swings.
In athletes, microtrauma of the nails, favored by intensive sports practice and by wearing shoes that are too small, can be responsible for repeated small haemorrhages forming black spots under the nail.
Sore nail and fingertip
In some cases, the shock received by the finger or toe causes a sore on the nail or the tip of the finger. It sometimes happens that the blow mainly injures the nail fold, the area in which the nail is embedded.
A foreign body under the nail
Apart from any shock, it also happens that foreign bodies (for example, a splinter) penetrate under the free edge of the nail and are housed under the nail plate in a more or less deep way.
Tearing of the nail
When this shock is moderate, the injury is limited to a lesion of the nail, which can be partially or totally torn off. The nail fold and/or the fleshy part (pulp) of the finger or toe can also be injured.
In the most severe cases, the wound is accompanied by a fracture of the phalanx located under the nail.
Amputation of the tip of the finger
If the blow was struck by a sharp object, the nail could be partially or totally severed, as well as the phalanx with the tip of the finger or toe.
HEMATOMA UNDER THE NAIL OR FOREIGN BODY UNDER THE NAIL: WHAT TO DO ON YOUR OWN?
Most often, it is possible to treat yourself a simple hematoma under the nail (“black nail”) or a foreign body inserted under the nail.
However, trauma to the toenails is more at risk of secondary infection than that of the hands. Be vigilant, if you are worried about the lesion or if symptoms of infection appear (pain, redness, swelling), consult your doctor.
Also, you need to take tetanus vaccination. If not, then you must consult your doctor to recall the tetanus vaccine promptly.
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