Why does my back hurt a few days after sex even though I am on top can this be artherities?

Back pain a few days after sex, especially while being on top, may not necessarily indicate arthritis. There are several possible causes for this discomfort, which could range from muscle strain to other underlying conditions. It's always advisable to consult a healthcare professional for a proper assessment and diagnosis. They can rule out any underlying medical issues and provide appropriate treatment or recommendations.