Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单
| | A | | 1 | | | B | | b | | | C | | 人才招聘 | | | D | | | | | E | | 电子 | | | F | | f | | | G | | 克 | | | H | | h | | | I | | 我 | | | J | | j | | | K | | k | | | L | | 升 | | | M | | 米 | |
| | N | | n | | | O | | o | | | P | | p | | | Q | |常见问题 | | | R | | 研究 | | | S | | | | | T | | 吨 | | | U | | u | | | V | | v | | | W | | 瓦特 | | | X | | x | | | Y | | y | |
Symptoms of Hair loss症状脱发
Male-pattern baldness is hereditary which means it runs in families. 以男性为秃顶是遗传这意味着它运行在家庭。 It usually starts to happen around the late twenties and thirties although this can vary.它通常开始发生约晚20多岁和30 ，虽然这可以有所不同。 By the age of 60, most men have some degree of hair loss.由60岁以上的，大多数男人有某种程度的脱发。
Male-pattern baldness is so called because it tends to follow a set pattern.以男性为秃顶是所谓的，因为它往往遵循一套模式。 The first stage is usually a receding hairline, followed by thinning of the hair on the crown and temples.第一阶段，通常是后退极细，其次是细化的头发，对官方和庙宇。 When these two areas meet in the middle, you have a horseshoe shape of hair around the back and sides of your head.当这两方面的满足，在中东，您有一个马蹄形状的头发，周围的背部和两岸在你的头上。 Eventually you may be completely bald.最终您可能会完全秃顶。
Women’s hair gradually thins with age but they only tend to lose hair from the top of the head. womenâ € ™ s头发逐渐thins与年龄，但他们只倾向于失去头发从顶部的头部。 This usually gets more noticeable after the menopause.这通常是越来越明显后，更年期。 It is called androgenetic alopecia, or female-pattern hair loss, and also tends to run in families.这是所谓的雄激素性脱发，或女性格局脱发，也往往是运行在家庭。
Alopecia areata causes patches of baldness that are about the size of a large coin. 斑秃的原因块秃发是大小约一个大的硬币。 They usually appear on the scalp but can occur anywhere on the body, including the beard, eyebrows and eyelashes.他们通常出现在头皮，但可以发生在任何地方对身体的，包括胡须，眉毛和睫毛。 There are usually no other symptoms.有通常没有其他症状。
