Scrotum

In some male mammals, the scrotum is an external bag of skin and muscle containing the testicles. It is an extension of the abdomen, and is located between the penis and anus. The female homologue during fetal development is the labia majora.

Health issues

A common problem of the scrotum is the development of masses. Common scrotal masses include

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• sebaceous cyst, also called a epidermal cyst
• hydrocele
• hematocele
• spermatocele
• varicocele

Other conditions include:

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• contact dermatitis: may cause redness, swelling, and itching of the entire scrotum. Can result from soaps, solvents, detergents, and natural irritants such as poison ivy.
• inguinal hernia
• yeast infection
• swelling resulting from conditions external to the scrotum, including:
• heart failure
• kidney or liver disease