1. What is Testicular Volume Calculator?

Definition: This calculator estimates normal adult testicular volume using the ellipsoid formula (Spanish method).

Purpose: It helps medical professionals assess testicular size, which is important for evaluating male reproductive health.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( V \) — Volume (cubic centimeters)
• \( L \) — Length (centimeters)
• \( W \) — Width (centimeters)
• \( H \) — Height (centimeters)

Explanation: The formula approximates the testis as an ellipsoid, with π/6 (~0.5236) as the correction factor for this shape.

3. Importance of Testicular Volume Measurement

Details: Normal adult testicular volume typically ranges between 10-20 cm³. Volume assessment helps diagnose conditions like hypogonadism, varicocele, or testicular tumors.

4. Using the Calculator

Tips: Measure the testis dimensions using ultrasound or orchidometer. Enter length, width, and height in centimeters. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the normal range for testicular volume?
A: Normal adult testes typically measure 10-20 cm³, with average around 15 cm³.

Q2: How accurate is this calculation?
A: The ellipsoid formula has about 90% accuracy compared to water displacement (gold standard).

Q3: When would testicular volume be abnormal?
A: Volume < 12 cm³ may indicate hypogonadism, while > 25 cm³ may suggest conditions like hydrocele or tumor.

Q4: Should both testes be measured?
A: Yes, always measure both testes as they may differ in size (normal difference < 2 cm³).

Q5: Can this be used for pediatric patients?
A: No, this calculator is for adult testes. Pediatric volumes follow different growth curves.