Musculoskeletal pain: Pain can be acute (temporary) or chronic (long-lasting). It can be localized or widespread, mild or severe enough to interfere with your daily routine. Generally, musculoskeletal pain occurs due to arthritis, osteoporosis, fractures, dislocations, or injury to the bones, joints, tendons, muscles, and ligaments. Symptoms may include stiffness, swelling, trouble moving the affected area, soreness, cracking, sound at the joints, redness, weakness, muscle spasms, or twitching.
Osteoarthritis: It is a joint disease in which the two ends of the joints come together due to the breakdown of a protective covering of cartilage. Due to the absence of this protective covering, the joints rub against each other, leading to pain and stiffness. Symptoms include pain, stiffness, inflammation, and tenderness. The main reason for osteoarthritis is age; the older you are, the more likely you are to get osteoarthritis, thus known as degenerative disease, meaning that the joints wear out as a person ages.