Hormonal variations: Pregnancy and breastfeeding are linked to a higher risk, probably because of hormonal fluctuations impacting tendon and ligament elasticity. Tendons associated with wrist extension, the motion of bending the wrist backward. These tendons also assistance shift the wrist towards the thumb or maybe the minor finger. Constrained motion: https://www.theorthopaedicandpainpractice.com/why-does-the-side-of-my-wrist-hurt/