Health Library

Thank you for choosing Nashua Rheumatology.  Here you will find detailed information on a wide range of rheumatology health conditions, illnesses, and treatments.

About Arthritis and Other Rheumatic Diseases

Arthritis, itself a group of more than 100 different diseases, is one category of rheumatic diseases that may cause pain, stiffness, and swelling in the joints and other supporting body structures, such as muscles, tendons, ligaments, and bones.

Ankylosing Spondylitis

Ankylosing spondylitis (AS) is a type of arthritis that affects the spine.


Arthritis and other rheumatic diseases are characterized by pain, swelling, and limited movement in joints and connective tissues in the body.


Gout is characterized by inflamed, painful joints due to the formation of crystal deposits at the joints.


Osteoarthritis, the most common form of arthritis, is a chronic degenerative joint disease that affects mostly middle-aged and older adults.

Psoriatic Arthritis

Psoriatic arthritis is a form of arthritis associated with psoriasis, a chronic skin and nail disease characterized by red, scaly rashes and thick, pitted fingernails.

Rheumatoid Arthritis

Rheumatoid arthritis, an autoimmune disorder, is a chronic disease that causes inflammation of the joints.


Scleroderma is a chronic, degenerative disease causing abnormal growth of the connective tissue that affects the joints, skin, and internal organs.

Systemic Lupus Erythematosus (Lupus)

Systemic lupus erythematosus, also known as SLE, or simply lupus, is a disease that is characterized by periodic episodes of inflammation of and damage to the joints, tendons, other connective tissues, and organs, including the heart, lungs, blood vessels, brain, kidneys, and skin.