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Frostbite is a skin injury that occurs when exposed to extremely low temperatures, causing the freezing of the skin or other tissues, [1] commonly affecting the fingers, toes, nose, ears, cheeks and chin areas. [6] Most often, frostbite occurs in the hands and feet. [7] [8] The initial symptoms are typically a feeling of cold and tingling or ...
Dermatophagia. Dermatophagia (from Ancient Greek δέρμα — lit. skin and φαγεία lit. eating) or dermatodaxia (from δήξις, lit. biting) [3] is a compulsion disorder of gnawing or biting one's own skin, most commonly at the fingers. This action can either be conscious or unconscious [4] and it is considered to be a type of pica.
Median nerve palsy. Diagram from Gray's anatomy, depicting the nerves of the upper extremity, amongst others the median nerve. Injuries to the arm, forearm or wrist area can lead to various nerve disorders. One such disorder is median nerve palsy. The median nerve controls the majority of the muscles in the forearm.
Nail biting, also known as onychophagy or onychophagia, is an oral compulsive habit of biting one's fingernails. It is sometimes described as a parafunctional activity, the common use of the mouth for an activity other than speaking, eating, or drinking.
Green nail syndrome is an infection that can develop in individuals whose hands are frequently submerged in water resulting in discolouration of the nails from shades of green to black. [3] [4] It may also occur as transverse green stripes that are ascribed to intermittent episodes of infection. [3] It is usually caused by the bacteria ...
The pressure immobilisation technique is a first aid treatment used as a way to treat spider bite, snakebite, bee, wasp and ant stings in allergic individuals, blue ringed octopus stings, cone shell stings, etc. The object of pressure immobilisation is to contain venom within a bitten limb and prevent it from moving through the lymphatic system ...
Jammed Finger; Jammed ring finger with minor bruising two days after injury: Symptoms: Swelling, pain, limited range of motion: Types: Sprain, dislocation, fracture: Causes: Axial loading to the finger: Diagnostic method: Physical Examination or X-ray: Treatment: Rest, Ice, Compression, Elevation
Trigger finger, also known as stenosing tenosynovitis, is a disorder characterized by catching or locking of the involved finger in full or near full flexion, typically with force. There may be tenderness in the palm of the hand near the last skin crease (distal palmar crease).
A hand imitating an ulnar claw. The metacarpophalangeal joints of the 4th and 5th fingers are extended and the Interphalangeal joints of the same fingers are flexed. An ulnar claw, also known as claw hand or ‘Spinster’s Claw’, is a deformity or an abnormal attitude of the hand that develops due to ulnar nerve damage causing paralysis of ...
Many arthropods bite or sting in order to immobilize their prey or deter potential predators as a defense mechanism. Stings containing venom are more likely to be painful. Less frequently, venomous spider bites are also associated with morbidity and mortality in humans. Most arthropod stings involve Hymenoptera (ants, wasps, and bees).