Meal-worms are actually beetle grubs - NOT worms.

round worms are round and flat worms are flat!

silk worms are tiny worms hanging from silk on a tree

Normally no. Maggots are sometimes used to help treat wounds, but other worms are generally a bad sign. Some bad worms are heart worms, round worms, tape worms, pin worms, and hook worms.

Flatworms such as tape worms and flukes, and roundworms such as trichinosis-causing worms, filarial worms, ascarid worms and hook worms.