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Nail biting, also known as onychophagy or onychophagia, is an oral compulsive and unhygienic 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.
Periungual warts are warts that cluster around the fingernail or toenail. They appear as thickened, fissured cauliflower-like skin around the nail plate. Periungual warts often cause loss of the cuticle and paronychia. Nail biting increases susceptibility to these warts. [1]
Filing is also recommended, as to keep nails from becoming too rough and to remove any small bumps or ridges that may cause the nail to get tangled up in materials such as cloth. [21] Bluish or purple fingernail beds may be a symptom of peripheral cyanosis, which indicates oxygen deprivation. Nails can dry out, just like skin.
Summer penile syndrome is usually caused by chigger bites on the penis, or, more rarely by exposure of the genital region to plants like poison ivy, sumac, and oak. [2] [3] The majority of cases occur in the summer months, with the clothing associated with warmer weather making penis-arachnid and penis-plant contact more likely.
Formication is a well-documented symptom which has numerous possible causes. The word is derived from formica , the Latin word for ant . Formication may sometimes be experienced as feelings of itchiness , tingling, pins and needles, burning, or even pain.
Pericoronitis is inflammation of the soft tissues surrounding the crown of a partially erupted tooth, [1] including the gingiva (gums) and the dental follicle. [2] The soft tissue covering a partially erupted tooth is known as an operculum, an area which can be difficult to access with normal oral hygiene methods.
Cellulitis in the lower leg is characterized by signs and symptoms similar to those of a deep vein thrombosis, such as warmth, pain, and swelling (inflammation). Reddened skin or rash may signal a deeper, more serious infection of the inner layers of skin.
Symptoms of latrodectism (from widow spiders) may include pain at the bite or involve the chest and abdomen, sweating, muscle cramps and vomiting among others. By comparison, loxoscelism (from recluse spiders) can present with local necrosis of the surrounding skin and widespread breakdown of red blood cells .