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正常阴道的pH值是3.8-4.4，是为保持阴道酸性环境。pH值=7为中性，pH值>7为碱性，pH值<7为酸性。女性阴道pH值<7是因为阴道内乳杆菌的作用，乳杆菌能够将糖分和阴道上皮内的糖原分解而产生酸，使阴道处于酸性环境，

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正常阴道pH值是多少

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