You should aim to wash rugs regularly to maintain cleanliness and hygiene in your home. For high-traffic areas or rugs that are frequently exposed to dirt, dust, and spills, washing them every 3 to 6 months is recommended. However, rugs in low-traffic areas or decorative rugs may only need washing once or twice a year. It's important to consider factors such as household pets, allergies, and the rug's material when determining how often to wash it. Regular vacuuming and spot cleaning can also help extend the time between washes. By keeping your rugs clean, you can prolong their lifespan and ensure a healthier living environment.