问:最近一段时间,我的手上长出了几个老茧,我曾试图用小刀刮掉它们,但没过多久又长出来了。请问为什么会长老茧?老茧有没有害处?有什么办法方便且有效的去除办法?(初一)答:茧子是为了保护你的手免受摩擦伤害而后天长出来的。老茧对人体没有害处。其实,每个人的表皮都很娇嫩,经? Q: In recent days, several old men have grown on my hands. I tried to scrape them off with a knife, but it didn’t take long to grow. Excuse me, why does the president grow old? Does the old man have any harm? Is there any way to remove it easily and effectively? (Primary 1) Answer: The lice are used to protect your hands from frictional injuries and come of age. The old man has no harm to the human body. In fact, each person’s skin is delicate and elegant.