Loose anagen syndrome, also known as loose anagen hair syndrome, is a hair disorder related to dermatology. It is characterised by the easy and pain free detachment of anagen staged hairs from the scalp. This hair condition can be spontaneous or genetically inherited.Loose anagen syndrome is primarily described in fair-haired children who have easily dislodgeable hair. : 641  It is commonly present in younger children, generally between the ages of 2 to 8. It is especially observed in female children with light coloured hair. Females and males have differences in hair. There are knowledge gaps about loose anagen syndrome in males, and a 6 to 1 incidence ratio of females to males with loose anagen syndrome, respectively. Loose anagen syndrome may also be misdiagnosed in males, as males traditionally have short hair.Patients with loose anagen hair syndrome usually experience hair thinning around the whole scalp or at the occipital scalp, at the back of the head. Although this is a hair condition, there have only been reports of this condition also affecting the patients eyebrows. There are no noted impacts on any other hairs of the body such as eyebrows and eyelashes. It also does not have any impacts on nails, teeth or skin.Loose anagen syndrome is more predominantly seen in fairer skin and it is not as common in dark skin populations. Abdel-Raouf, El-Din, Awad, Ashraf, Mohammad, Hosan, Hasan, Moetaz, Tag and Mohammad have reported a population of dark skinned individuals with loose anagen syndrome.
Malassezia folliculitis or Pityrosporum folliculitis,  is a skin condition caused by infection by Malassezia (formerly Pityrosporum) yeast. : 314 The skin of the upper trunk area including the back, chest, arms and sometimes the neck is often affected and this condition is often seen in young to middle aged adults, although it has been known to occur in adults well into their sixties, and can also be found on the lower extremities as well. Its diagnosis is based on the pruritic (itchy) papulopustules found in a follicular pattern in these regions.Pustules are caused by an overgrowth of the yeast (a type of fungus) Malassezia furfur (Pityrosporum ovale), which plugs the follicles. M. furfur is lipophilic, requiring fatty acids like what is present in oily skin to proliferate. It has been shown that Malassezia yeast grows by consuming fatty acids with carbon chain lengths C11 to C24. Pityrosporum is part of the normal skin flora, but overgrows in certain conditions. Overgrowth is associated with oily skin, humidity or other pre-existing dermatologic conditions such as seborrheic dermatitis and severe dandruff. See also
Skin lesion
List of cutaneous conditions


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