SLPs treat many types of communication and swallowing disorders these include:
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Speech sounds—how we say sounds and put sounds together into words, articulation, phonological disorders, apraxia of speech, or dysarthria.
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‍Language—how well we understand what we hear or read and how we use words to tell others what we are thinking. Pediatric SLPs help children develop some of the first words.
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‍Feeding and swallowing—how well children suck, chew, and swallow foods and liquids. Pediatric SLPs can help with "picky eaters" as well.
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‍Literacy—how well we read and write. People with speech and language disorders may also have trouble reading, spelling, and writing.
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‍Social communication—how well we follow rules, like taking turns, how to talk to different people, or how close we are to someone when talking.
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‍Voice—how our voices sound. We may sound hoarse, lose our voices easily, talk too loudly or through our noses, or be unable to make sounds.
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‍Fluency—also called stuttering, is how well speech flows. Someone who stutters may repeat sounds, like t-t-t-table, use "um" or "uh," or pause a lot when talking. Many young children will go through a time when they stutter.
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‍Cognitive-communication—how well our minds work. Problems may involve memory, attention, problem solving, organization.

‍( Referenced from ASHA.org)