青春痘在英语中通常被称为acne。它的来源是由于皮脂和死皮细胞在毛囊内堆积，形成粉刺和红肿，通常在青春时期出现。

下面是一些例句：

Acne is a common skin condition that affects many people during their teenage years.

Acne is caused by a combination of factors, including hormones, genetics, and bacteria.

Acne can be treated with over-the-counter medications or prescription creams and antibiotics.

以下是中文翻译：

青春痘是一种常见的皮肤病，在青春期会影响很多人。

青春痘的原因是荷尔蒙、遗传因素和细菌的综合作用。

青春痘可以通过非处方药物或处方药膏和抗生素来治疗。