TLDR Severe male pattern hair loss is linked to lower hair density in the back of the head.
The study evaluated hair parameters in the occipital region of 386 male patients with male pattern hair loss (MPHL). Patients were categorized into mild, moderate, and severe groups based on the BASP classification. The study found that younger patients tended to have milder MPHL, and there was a significant difference in hair density between the severe group and the other groups, with severe patients having lower hair density. The study also noted a significant difference in BMI between the mild and severe groups, potentially related to age. The findings suggest that hair transplants should be performed early to maintain the quality of the donor zone.
3 citations,
November 2021 in “Frontiers in Medicine” 
30 citations,
October 2021 in “Journal of The American Academy of Dermatology” Hair transplantation can effectively restore hair in balding areas.
153 citations,
March 2017 in “Endocrine” Male pattern baldness involves genetics, hormones, and needs better treatments.
20 citations,
March 2010 in “Journal of The European Academy of Dermatology and Venereology” Occipital scalp affects female hair loss; terminal/vellus ratio helps diagnose androgenetic alopecia.
125 citations,
July 2007 in “Journal of The American Academy of Dermatology” The BASP classification is a detailed and accurate way to categorize hair loss in both men and women.
22 citations,
January 2017 in “Indian Dermatology Online Journal” Body hair transplants can treat baldness but differ from scalp hair and need more research on long-term results and side effects.
6 citations,
April 2015 in “Clinical and Experimental Dermatology” Hair density and thickness decrease in all scalp areas for East Asians with AGA.
22 citations,
May 2002 in “Skin Research and Technology” CE-PTG detects early hair follicle issues in balding areas, helping measure male hair loss.
