**Core Concept**
Teratospermia is a condition characterized by the presence of abnormal sperm morphology in a semen sample. It is a type of male infertility disorder that can affect a man's ability to father a child. The term "teratospermia" comes from the Greek words "teratos," meaning "monstrosity," and "sperma," meaning "seed."

**Why the Correct Answer is Right**
Teratospermia is diagnosed when more than 4% of sperm in a semen sample exhibit abnormal morphology, such as misshapen heads, tails, or both. This can be due to various factors, including genetic mutations, environmental toxins, or infections. The abnormal sperm morphology can lead to impaired sperm function and fertility. Teratospermia can be a contributing factor to male infertility, making it a critical aspect of infertility evaluation and treatment.

**Why Each Wrong Option is Incorrect**
**Option A:** Teratospermia is not the same as oligospermia, which refers to low sperm count. While both conditions can contribute to male infertility, they are distinct entities with different underlying causes and implications for treatment.
**Option B:** Teratospermia is not a type of female infertility disorder. It is a male-specific condition that affects sperm morphology and fertility.
**Option C:** Teratospermia is not synonymous with azoospermia, which refers to the absence of sperm in the semen. While both conditions can impact fertility, teratospermia involves abnormal sperm morphology rather than the absence of sperm.

**Clinical Pearl / High-Yield Fact**
Teratospermia can be a significant contributor to male infertility, and its diagnosis often requires semen analysis and other fertility evaluations. A high percentage of abnormal sperm morphology can indicate underlying issues that require medical attention and treatment.

**Correct Answer: C. Teratospermia refers to the presence of abnormal sperm morphology in a semen sample.**