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Why we go bald?
25, Jan, 2024
Male pattern baldness, also known as androgenetic alopecia, is the most common cause of hair loss in men. It is a hereditary condition influenced by a combination of genetic factors and hormonal changes. The pattern of hair loss typically follows a specific sequence, leading to thinning and eventual baldness in certain areas, primarily the top and front of the head.
Genetic Predisposition: The primary factor contributing to male pattern baldness is genetic predisposition. Specific genes inherited from both parents influence the susceptibility to hair loss. The condition is often passed down through family lines.
Hormonal Factors: Testosterone, a male sex hormone, plays a role in the development of male characteristics, including facial hair and a deeper voice. However, in individuals genetically predisposed to male pattern baldness, testosterone is converted into dihydrotestosterone (DHT) by the enzyme 5-alpha reductase.
DHT and Hair Follicles: DHT has a more significant impact on certain hair follicles, especially those on the top and front of the head, making them more susceptible to miniaturization. Miniaturization refers to the gradual shrinking of hair follicles, resulting in shorter and finer hair.
Progression of Hair Loss:
  • Temporal Recession: Hair loss often begins with a receding hairline, commonly referred to as temporal recession, where the hairline moves backward on the sides.
  • Vertex Balding: The balding process then extends to the vertex (crown) of the head. Thinning and loss of hair become more apparent in this region.
  • Frontal Baldness: Eventually, the frontal and temporal regions may meet, creating an "M" shape, with the hairline receding further back.
Sensitivity of Hair Follicles: The hair follicles in the affected areas are genetically programmed to be more sensitive to the influence of DHT. Over time, exposure to DHT leads to the miniaturization of these follicles and a reduction in the quality and quantity of hair they produce.
It's important to note that female pattern baldness can also occur, but it often involves diffuse thinning rather than a distinct pattern of hair loss.
While male pattern baldness is a common and natural part of aging for many men, various treatments are available to slow down the progression of hair loss or stimulate hair regrowth. Consultation with a healthcare professional or dermatologist can help determine the most appropriate course of action based on individual circumstances.
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