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豆豆快5岁了,生长发育得很好,很少患病,可就是经常用手指掏挖耳朵。那天,妈妈对着光仔细检查豆豆的耳朵,竞发现耳内有许多耳屎。妈妈想用火柴棒为他掏除耳屎,又怕伤到孩子的鼓膜。耳屎在医学上称为耵聍,又称耳垢,是外耳道皮下组织内的耵聍腺分泌的黏糊状物质,它可维持耳道润滑,保持一定湿度,它和耳毛一起黏附和阻挡尘土、局部皮肤代谢产生的脱落细胞、飞虫等异物,起着保护外耳道和耳鼓膜的作用。正常外耳道内均有一薄层浅黄色的耵聍附着。一般情况下,只要小孩耳朵不痛、不痒,听力好,不必人工清除耵聍。在说话、吃东西、打喷嚏时,随着下颌的活动,耳道内的片状耵聍便会慢慢松动脱落而被排出。有少数小孩的耵聍腺分泌旺盛,其外耳道相对狭长,肌肉较松弛,咀嚼东西时颌关节的力量不够,
Peas fast 5 years old, growth and development is very good, very few sick, but often dig their ears with your fingers. That day, my mother looked carefully at the light of Peas ears, competing ears have many ear wax. Mom wants to use matchsticks for his dig earwax, afraid to hurt the child’s tympanic membrane. Ear wax is called medaka in medicine, also known as earwax, which is a sticky substance secreted by the glandular gland in the subcutaneous tissue of the external auditory meatus. It maintains the ear canal and maintains a certain degree of humidity. It adheres to and obstruct the dust together with the ear hair. Skin metabolism of exfoliated cells, flying insects and other foreign matter, plays a protective role of the external auditory canal and eardrum. Normal external auditory canal have a thin yellowish 耵 聍 attachment. Under normal circumstances, as long as children’s ears do not hurt, itch, good hearing, do not have to manually remove 耵 聍. In talking, eating, sneezing, with the activities of the lower jaw, the flatter 内 耳 inside the ear canal will slowly loose and be discharged. A small number of children gurgling gland secretion, the external auditory canal relatively narrow, more relaxed muscles, chewing things when the strength of the jaw joint is not enough,