Estrogen depletion is associated with increased tearing of ligaments and tendons.
"I get that you're having tissues tearing—ligaments and tendons like to start tearing as estrogen leaves the building." (said at 0:02:08)
Estrogen plays a key role in regulating collagen turnover and connective tissue homeostasis. The decline in estrogen during menopause is linked to reduced collagen synthesis, impaired tendon remodeling, and an increased incidence of degenerative tendinopathies and tendon tears (such as rotator cuff and Achilles pathology). However, for ligaments, higher estrogen levels or hormonal fluctuations are typically what increase tissue laxity and susceptibility to acute ligament tears (such as ACL injuries), rather than low estrogen alone. The risk of soft tissue injury across perimenopause and menopause involves an interplay of hormonal shifts, mechanical loading, and age-related tissue degeneration.
- supports: Effect of estrogen on tendon collagen synthesis, tendon structural characteristics, and bi… (Journal of applied physiology (Bethesda, Md. : 1985) 2009)
"In conclusion, estradiol administration was associated with higher tendon FSR and a higher relative number of smaller fibrils. Whereas this indicates stimulated collagen turnover in the resting state, collagen responses to exercise were negatively associated with s-estradiol. These results indicate a pivotal role for estradiol in maintaining homeostasis of female connective tissue." (abstract, results, passage verified)
pubmedfull study (doi) - supports: Effects of transdermal estrogen on collagen turnover at rest and in response to exercise i… (Journal of applied physiology (Bethesda, Md. : 1985) 2012)
"Menopause is associated with loss of collagen content in the skin and tendon as well as accumulation of noncontractile tissue in skeletal muscle." (abstract, results, passage verified)
pubmedfull study (doi) - context: Hormonal Shifts and Structural Strain: A Literature Review of Menopause and Perimenopause … (Annals of rehabilitation medicine 2026)
"Estrogen plays a multisystem role in maintaining trabecular bone integrity, collagen turnover, and neuromuscular coordination. Its abrupt loss causes bone demineralization (2%-5% annually in early menopause), impairs tendon repair, and contributes to sarcopenia. Fluctuating estradiol levels during perimenopause may transiently increase ligament laxity, further destabilizing joints. Common injuries such as Achilles and rotator cuff tendinopathies, plantar fasciitis, and stress fractures are amplified by low bone mineral density, prior fracture history, aromatase inhibitor use, and rapid increases in physical activity." (abstract, results, passage verified)
pubmedfull study (doi)