M66.5: Spontaneous rupture of unspecified tendon

Spontaneous rupture of an unspecified tendon is a specific medical condition where a tendon, which is a strong cord that attaches muscle to bone, tears or breaks apart without any obvious reason such as trauma or injury. This event can occur in any part of the body where there are tendons, including arms, legs, shoulders, or hips. Typically, when a tendon ruptures spontaneously, it causes sudden and severe pain in the affected area. This pain is often accompanied by swelling, bruising, and the inability to use the affected muscle properly, which can lead to difficulty in moving or performing daily tasks. Detecting this condition may require medical imaging such as an ultrasound or MRI. The condition can occur in anyone, but is more common in individuals over 40 years of age or in those who indulge in heavy physical activity or exercise. Other risk factors include certain medical conditions like arthritis, diabetes, or infections that weaken the tendons.