Sometimes the joints make noise when you exercise. What does this mean? For example, when practicing dumbbells again.

Sometimes the joints will make a noise during exercise, which is usually called "snapping".

It is the sound produced by friction between articular surfaces, between cartilage pads and articular surfaces, and between tendons and joint capsules during joint activities. Just snap your fingers, it doesn't look red and swollen, you don't feel pain, and you don't have dyskinesia. This is normal. Don't mind too much.