erection joint

例句：

1. 1.The doctor examined the patient's penile joint and found no signs of infection.
   医生检查了病人的阴茎关节，没有发现感染的迹象。
2. 2. During sexual intercourse, the penile joint is exposed to bacteria that can cause infections.
   在性交过程中，阴茎关节暴露于细菌中，这些细菌可能导致感染。
3. 3.The patient was advised to avoid activities that could strain the penile joint.
   患者被建议避免可能导致阴茎关节紧张的活动。