Medically reviewed by Amy Kwan, PT Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans ...

This may include the latissimus dorsi, teres major, and pectoralis major muscles, for example ... swelling, and pain, among other symptoms. Other forms of infection, such as fungal infections ...

Armpit pain is a common ... injuries to the muscles and tendons that insert onto the arm bone," says Lin. These include the pectoralis, or the chest muscles, the latissimus dorsi muscle, which ...

The symptoms: poor contact with the ... IF YOU FAILED: The inverted triangular-shaped muscle of your upper back, known as the latissimus dorsi or "lat," is too tight. This causes your swing ...

This can lead to muscle strain and pain. Symptoms associated with latissimus dorsi pain from spinal issues can include: Dull, aching pain Muscle spasms Muscle tightness and stiffness Reduced ...