Male infertility, depending on what is causing it, can be classified into the following types:
- Pre-testicular or endocrine factors: the development and/or the testicular function are compromised due to hormonal irregularities.
- Testicular factors: direct damage to the testes.
- Post-testicular factors: alterations in the seminal vesicles, which are responsible for the exit of spermatozoa from the testes.
- Sperm-related factors: abnormalities of the sperm that affect sperm quality directly.
Read the full article on: What Causes Male Infertility? – Symptoms & Treatment ( 75).
By Ana María Segura Paños M.D., M.Sc. (andrologist), Emilio Gómez Sánchez B.Sc., Ph.D. (senior embryologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Marie Tusseau (invitra staff).
Last Update: 05/29/2017
