My son is 18 months. But yet to speak. All he can is " murm murm" asking for food and "mah mah" . Need to see speech therapist ?

Hey dear, dont fret. 18months is still really young. Give your lo more time, keep talking to him that will encourage him to communicate as well. Most importantly each child will grow at their own pace. For now, enjoy the less talkative moments, when they come, they will. Trust me :)