A 37-year-old man with infertility is evaluated. Which of the following is a common cause of male infertility: (A) Varicocele (B) Phimosis (C) Hydrocele?

You're on a roll — Question 1: A 37-year-old man presenting with infertility after 8 years of marriage requires evaluation for male factors. A. Varicocele: This is an enlargement of the veins within the scrotum. Varicoceles are a common and treatable cause of male infertility, as they can lead to increased scrotal temperature, impairing sperm production and quality. B. Phimosis: This is a condition where the foreskin cannot be retracted over the glans. While it can cause discomfort or hygiene issues, it is not a direct cause of infertility. C. Hydrocele: This is a collection of fluid around the testicle. It typically does not affect fertility unless it is very large or associated with other conditions. Based on the options, a varicocele is the most likely cause of male infertility. The correct option is A. A) Variocele Question 2: The question describes a tumor located where the trachea branches into the right and left main bronchi. A. Glottis: The glottis is the part of the larynx that includes the vocal cords, located much higher in the airway. B. Carina: The carina is the anatomical ridge at the bifurcation of the trachea into the two main bronchi. This precisely matches the description of the tumor's location. C. Vestibule: In the respiratory system, the vestibule refers to the anterior part of the nasal cavity. Therefore, the cancer affects the carina. The correct option is B. B) Carina 4 done, 1 left today. What's next?