Final answer:
Alopecia is the medical term for hair loss, which can occur due to various reasons such as genetics, autoimmune disorders, hormonal imbalances, or medical treatments. Examples of alopecia include male pattern baldness, alopecia areata, and alopecia universalis.
Step-by-step explanation:
Alopecia is the medical term for hair loss. It is characterized by the partial or complete absence of hair from areas of the body where it normally grows. Alopecia can occur due to various reasons such as genetics, autoimmune disorders, hormonal imbalances, or medical treatments like chemotherapy. Examples of alopecia include male pattern baldness, alopecia areata (patchy hair loss), and alopecia universalis (total hair loss).