婴儿到半岁左右开始长乳牙,在牙齿接近萌出时,由于刺激牙床的神经感受器,容易引起牙肉发痒。此时我们常可见到,婴儿不自主地把手指放在口里吸吮,或在喂奶时不停地咬奶头。如果我们仔细查看婴儿的口腔,可以见到牙床局部发红或微微肿胀,这是牙齿将要萌出的征象。在这一阶段,很容易引起牙床和口腔粘膜的感染发炎。因此,做妈妈的要经常注意把乳头洗干净后再给婴儿喂奶。 Baby until the age of six months began to grow long teeth, near the eruption of teeth, due to stimulate the gums of the nerve receptors, easily cause itch teeth. At this point we can often see that babies involuntarily put their fingers in the mouth to suck, or bite the nipple while feeding. If we look closely at the baby’s mouth, we can see a local redness or slight swelling of the gums, which is a sign that the teeth will erupt. At this stage, it is easy to cause inflammation of gums and oral mucosa. Therefore, mothers should always pay attention to the nipple clean and then give the baby feeding.