TLDR Men with enlarged prostates often have more severe baldness.
In 1998, a study involving 225 patients with benign prostatic hyperplasia (BPH) and 160 controls investigated the link between BPH and male pattern baldness. The study found that those with BPH had a higher severity of baldness (median grade IV) compared to the control group (median grade III), with a significant difference (P <0.001). Additionally, 53.8% of the BPH group had a baldness grade of IV or higher, compared to 36.9% in the control group (P <0.01), and a higher incidence of inherited baldness was observed in the BPH group (31.6% vs. 12.5% in controls, P <0.001). However, no correlation was found between the severity of baldness and the International Prostate Symptom Score. The study concluded that there is a strong association between BPH and male pattern baldness, which could lead to cross-screening and combined treatment strategies for both conditions.
19 citations
,
January 1997 in “Endocrinology” Testosterone can slow hair growth in adult monkeys, but a blocker called RU 58841 can counteract this and potentially help hair regrow.
30 citations
,
March 1996 in “British Journal of Dermatology” 61 citations
,
September 1994 in “The Journal of Clinical Endocrinology and Metabolism” 
101 citations
,
April 1994 in “Baillière's clinical endocrinology and metabolism” 5α-reductase is essential for male sexual development and its inhibitors have potential in treating various conditions related to hormone action.
187 citations
,
January 1994 in “The New England Journal of Medicine” Finasteride treats enlarged prostate and may help with baldness, but effects on sexual function and male fetuses are unclear.
1040 citations
,
October 1992 in “The New England Journal of Medicine” Finasteride effectively treats BPH but may increase sexual dysfunction risk.
40 citations
,
February 1992 in “The Journal of Clinical Endocrinology and Metabolism” Taking finasteride pills and using minoxidil lotion together can help grow hair.
57 citations
,
January 1986 in “The Prostate” The document suggests that targeting the hormone DHT could be a more effective treatment for prostate cancer than targeting testosterone.
December 2002 in “대한피부과학회지” Higher androgen receptor levels in bald areas may cause hair loss, while estrogen receptors have less impact.
1 citations
,
January 2002 in “Journal of Clinical Dermatology” Hair loss in androgenic alopecia may be linked to increased local androgen activities, but not to estrogen levels.
