Testicular atrophy occurs when the testes shrink. Several potential causes include aging, underlying medical conditions, or infections. The testes are two reproductive glands located in the scrotum ...

Muscle atrophy is the loss of muscle mass. Low physical activity, nutritional deficiencies, genetic factors, and some medical conditions may contribute. Muscle atrophy due to inactivity can occur if a ...

Brachioradialis pain can feel like extreme tightness in your forearm. It may also cause pain that worsens when you use your forearm muscles. Treatment can involve stretching and strength training.