The answer to 'why is my patio' is that there are several common causes for issues with patios, including settling, cracking, staining, and drainage problems. Symptoms can include uneven surfaces, cracks, discoloration, or standing water. Solutions may involve repairing cracks, re-leveling the patio, improving drainage, or replacing damaged pavers or concrete.
For minor issues, some patio problems can be addressed through DIY repairs. However, more significant structural or drainage concerns may require the expertise of a professional landscaper or contractor. It's best to carefully inspect the patio and address any problems promptly to prevent further damage.