THE PROSTATE.

The prostate is a small, walnut-sized gland in the male reproductive system, located below the bladder and surrounding the urethra. Its primary function is to produce fluid that nourishes and transports sperm, constituting a key part of semen. It is crucial for reproductive health.

Key Aspects of the Prostate:

• Location: Situated directly below the bladder and in front of the rectum, surrounding the urethra.
• Function: Produces a milky, alkaline fluid that mixes with sperm and other fluids to form semen, supporting sperm motility and viability.

A normal adult prostate is typically the size of a walnut or chestnut, weighing approximately 20–25 grams. Its volume is usually around 20–30 cubic centimeters (cc) or milliliters (ml), with average dimensions of roughly 4 cm wide, 3 cm high, and 2 cm thick. 

Normal Prostate Size Details:

• Weight: ~20–25 grams.
• Volume: ~20–30 cc/ml.
• Dimensions: ~4x3x2 cm.
• Growth: The prostate grows until age 20, remains stable until about age 30–45, and often begins growing again after age 45.
• Age-Related Changes: While 20-30g is normal for young adults, moderate enlargement (30–50 cc) is common in men aged 40–60, and larger sizes (>50-80 cc) are frequently seen in men over 60, often without causing severe symptoms. 

Key Considerations:

• Growth: The prostate is known for growing throughout a man's life.
• Variability: Normal size can vary between individuals, and an "enlarged" prostate does not always cause urinary symptoms.
• Symptoms: Medical consultation is recommended if symptoms like frequent or weak urination occur, regardless of the size.

Source: Google.