最近睾丸上長了一個小囊腫，直徑半厘米，表麵有點紅，輕捏有酸痛感，請問要不要看醫生啊？會是什麽病嗎？ 

回答： 
Possibilities include folliculitis and epidermal inclusion cyst. You can wait for one or two weeks. If it persists or get worse, then go see an urologist.