micromastia

例句：

1. 1. He was born with a micromastia, which made him look different from other boys.
   他出生时患有小阴茎，这使得他与其他男孩看起来不同。
2. 2. The doctors said that the micromastia could be treated surgically.
   医生说小阴茎可以通过手术治疗。
3. 3. Micromastia is a rare condition that affects only a small percentage of male infants.
   小阴茎是一种罕见病症，仅影响一小部分男性婴儿。