Based on the photos you provided, the thinning and recession you are experiencing along the nape and sides of your scalp do not appear typical for retrograde alopecia (also called ophiasis pattern alopecia areata) or the classic pattern of androgenetic alopecia (male pattern baldness), which usually affects the temples, crown, and frontal hairline first. Instead, this pattern of thinning and loss can be seen in a few different conditions: Mechanical or Traction Alopecia – If you often tie your hair tightly, wear helmets, or have styles that create tension on the nape and sides, this can lead to localized hair loss over time. Short Anagen Syndrome or Loose Anagen Syndrome – Less commonly, these can present with breakage or diffuse thinning in certain scalp regions. Scarring Alopecias (e.g., Folliculitis Decalvans, Lichen Planopilaris) – These can occasionally start on the nape and lead to patchy hair loss with signs of inflammation (redness, scaling, pustules). Ophiasis Pattern Alopecia Areata – This autoimmune hair loss can create a band-like loss along the lower scalp margin, though typically you would also notice smooth bare patches. If you see any of the following, you should consider having an in-person evaluation with a dermatologist: Redness, scaling, or pustules in the affected area Tenderness, itching, or burning Rapid progression of hair loss over weeks Scarring or shiny smooth skin where hair was previously growing In the meantime: Avoid tight hairstyles or tension on the area Be gentle with hair grooming Monitor for progression or other symptoms If the thinning continues or worsens, a dermatologist can perform a closer examination and possibly a scalp biopsy to clarify the diagnosis.