Male pattern baldness or androgenic alopecia is the most common cause of male hair loss. In this condition, testosterone converts to dihydrotestosterone (DHT), which affects the hair follicles located in the front and top of the head, causing them to shrink and eventually stop producing new hairs. It typically begins with a receding hairline at the temples and progresses to a complete balding of the scalp over time.

Telogen Effluvium is an event where hair follicles suddenly stop growing. Other treatments include low-level laser light therapy, scalp reduction surgery and hair transplants. In some cases, lifestyle changes such as reducing stress levels or improving diet can also help reduce the appearance of male hair loss and promote new hair growth.

Hormonal imbalance can also lead to male hair loss. Hypothyroidism is a condition where there is an underproduction of thyroid hormones which can lead to thinning hair as well as decreased libido, fatigue, and depression. An overactive thyroid can also cause temporary baldness due to hormonal changes in the body. Treating the underlying thyroid problem with medication may help restore hair growth in some cases.