The bite reaction is very mild, and it can be rarely seen between the hairs. Bites can be seen, especially in the neck of long-haired individuals when the hair is pushed aside. Swelling of the local lymph nodes and fever are rare. Itching may cause skin breakdown and uncommonly result in a bacterial infection. Many individuals do not experience symptoms. Itching may take 2–6 weeks to develop upon first infestation, and sooner in subsequent infestations.In Ethiopia, head lice appear to be able to spread louse-born epidemic typhus and Bartonella quintana. In Europe, the head lice do not appear to carry these infections. Transmission
Head lice spreads through direct contact of the head of an infested person with the head of a non-infested person. The presence of live lice indicates an active infestation while the presence of nits indicates a past or currently inactive infection with the potential to become active. Head lice do not leap or spring as a means to transfer to their hosts; instead, they move by crawling. Transmission by indirect contact (e.g. sharing bedding, clothing, headwear, the same comb) is much less common. The cause of head lice infestations is not related to cleanliness. Neither hair length nor how often the hair is brushed affects the risk of infection. Pets are not vectors for head lice.Other lice that infest humans are the body louse and the crab louse (aka pubic lice). The claws of these three species are adapted to attach to specific hair diameters.
Sex
Solitary glomus tumors, particularly subungual lesions, are more common in females than in males. Multiple lesions are slightly more common in males. Age
Solitary glomus tumors are more frequent in adults than in others. Multiple glomus tumors develop 11–15 years earlier than single lesions; about one third of the cases of multiple tumors occur in those younger than 20 years. Congenital glomus tumors are rare; they are plaguelike in appearance and are considered a variant of multiple glomus tumors. See also
Coccygeal glomus
List of cutaneous conditions
Myopericytoma

References
External links

synd/1584 at Who Named It? 00314 at CHORUS