Correcting frontal and lateral lisps for clear 's' and 'z' sounds.
A lisp is a speech sound disorder specifically affecting the production of 's' and 'z' sounds, caused by incorrect tongue placement during speech.
There are two main types: frontal lisps occur when the tongue pushes forward against or between the teeth, and lateral lisps happen when air escapes over the sides of the tongue creating a 'slushy' sound. Frontal lisps often resolve naturally by age 4-5, while lateral lisps typically require therapy. Both types can be effectively treated with targeted speech therapy, usually within 3-6 months.
If you notice these signs, it may be time to seek an evaluation
Early intervention leads to better outcomes. Take our free screener or book a professional evaluation.
Our therapists use evidence-based approaches tailored to your child's unique needs.
“We were skeptical about online therapy, but our daughter actually focuses better at home. She's made incredible progress!”
— Sarah M., Parent of 5-year-old
Common questions about lisps
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