hair

Androgenetic alopecia is a hereditary form of hair loss characterized by thinning of hair on the crown and temples, affecting about half of men over 50.

Hirsutism is excessive male-pattern hair growth in women, impacting approximately 8% of adult women, often leading to psychological distress.

Scarring alopecia involves the destruction of hair follicles, leading to permanent hair loss, while non-scarring alopecia can often be reversed.

<p>Traction alopecia is a type of non-scarring hair loss caused by tension on the hair, often from styles like tight ponytails.</p> Signup and view all the answers

<p>The anagen phase is the active growth phase of hair, lasting typically 4-6 years, with hair growing at about 0.3 mm per day.</p> Signup and view all the answers

<p>Hypertrichosis is a condition characterized by excessive hair growth in areas not typically affected by androgen, unlike hirsutism, which is androgen-dependent.</p> Signup and view all the answers

<p>Trichotillomania is a psychological condition where individuals compulsively pull out their own hair, leading to localized hair loss.</p> Signup and view all the answers

<p>A common approach is to perform a scalp examination and possibly a scalp biopsy to determine the type of alopecia.</p> Signup and view all the answers

<p>Dihydrotestosterone (DHT) is the primary repressor of hair growth.</p> Signup and view all the answers

<p>Men experience recession of the frontal hairline and thinning at the vertex, while women have more diffuse thinning with a characteristic retention of the frontal hairline.</p> Signup and view all the answers

<p>Finastride and Minoxidil (5% concentration) are recommended for male patients.</p> Signup and view all the answers

<p>Minoxidil increases cutaneous blood flow to hair follicles, with 5% for men and 2% for women recommended.</p> Signup and view all the answers

<p>Hirsutism is defined as the growth of terminal hair in male-pattern areas in females, primarily caused by increased androgenic activity.</p> Signup and view all the answers

<p>Adrenal gland tumors and Cushing's syndrome are two potential adrenal causes of hirsutism.</p> Signup and view all the answers

<p>Hair transplantation and scalp reduction are the surgical treatment options for androgenetic alopecia.</p> Signup and view all the answers

<p>Oral zinc sulphate acts as an immunomodulator which may help in the treatment of certain hair disorders.</p> Signup and view all the answers

<p>Telogen effluvium has a delayed onset of hair loss due to early entry into the telogen phase, while anagen effluvium results in abrupt hair loss from the growing anagen phase.</p> Signup and view all the answers

<p>Rapid progression of hair loss and loss of eyebrows and eyelashes.</p> Signup and view all the answers

<p>Immunological factors contribute to the autoimmune aspects that lead to hair follicle attack and resultant hair loss.</p> Signup and view all the answers

<p>Psychological stress can initiate telogen effluvium by causing an early transition of hair follicles from anagen to telogen phase, leading to delayed hair shedding.</p> Signup and view all the answers

<p>Topical or intralesional steroids are used to reduce inflammation and suppress the immune response targeting hair follicles.</p> Signup and view all the answers

<p>Ophiasis refers to a pattern of hair loss where hair is lost from the back and sides of the scalp, often indicating a poor prognosis.</p> Signup and view all the answers

<p>In men, it typically presents as a receding hairline and thinning crown, while in women, it usually manifests as diffuse thinning over the crown.</p> Signup and view all the answers

<p>Hypertrichosis is excessive hair growth in areas not typically associated with male-pattern hair, whereas hirsutism refers to excess hair growth in women in male-pattern areas.</p> Signup and view all the answers