Our daughter just turned 2 years old. Sh
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Our daughter just turned 2 years old. She is being raised bilingually — English (from me) and Mandarin (from my wife and grandparents). She has approximately 30 words total across both languages — about 18 in Mandarin and 12 in English. Some concepts she only has in one language (e.g., she says "water" in English but not Mandarin, and "吃" in Mandarin but not the English equivalent "eat").
She often code-switches mid-sentence (e.g., "Mama, 我要 milk"). She doesn't yet combine two words in any single language consistently.
Our monolingual pediatrician said she should have "at least 50 words" at 2 years and suggested we "focus on one language" to help her catch up. We're not sure this advice accounts for bilingualism.
Questions:
1. The standard "50 words at 24 months" milestone — does this apply to total vocabulary across both languages combined, or to each language separately? What does CDC/AAP say about bilingual children and this milestone?
2. At 24 months, is code-switching (mixing languages mid-sentence) a sign of confusion or a sign of normal bilingual development?
3. Should we take the pediatrician's advice to focus on one language, or is there evidence that this is counterproductive for bilingual language development?
4. At what point does bilingual language development cross the threshold where a speech-language evaluation is recommended — and would the SLP need to evaluate in both languages?
Answer
I'll read the skill references for bilingual language development and the 24-month checklist, plus your family profile.
Let me read the relevant references in parallel.
Short judgment: At 24 months the CDC milestone card asks for combining two words, pointing to two body parts, pointing to things in a book, and more gestures than waving. Your daughter has ~30 words across both languages but isn't yet combining two words in any single language consistently — that's one item not yet on the card. The "drop a language" advice is contrary to the ASHA / NHS / CDC-aligned guidance, and the pediatrician's "50 words" figure is not actually on the CDC 2-year card.
**1. "50 words at 24 months" — across both or each language?**
That exact number is not on the CDC 2-year checklist. What the card says (what 75%+ of children do) for language is: *says at least two words together ("more milk"), points to at least two body parts, points to things in a book when asked, and shows more gestures than waving (kiss, nod).*
Source: https://www.cdc.gov/act-early/milestones/2-years.html
The "50 words" figure comes from parent-report word inventories like the MacArthur-Bates CDI, not the CDC milestone list. For bilingual children, the standard practice is to **count across all languages the child uses** — that is the bilingual-adjusted rule, not a softened one.
Source: https://www.asha.org/public/speech/development/learning-more-than-one-language/
**2. Code-switching at 24 months — confusion or normal?**
Normal. Mid-sentence switching and word-mixing across languages ("Mama, 我要 milk") is a typical bilingual step — the child is using both languages as one communicative system. ASHA explicitly lists it as expected.
Source: https://www.asha.org/public/speech/development/learning-more-than-one-language/
**3. Should we follow the "focus on one language" advice?**
No — current guidance goes the other way. ASHA, NHS Start4Life, and the CDC's bilingual page all say: do not drop a home language as a treatment for late words. Bilingual exposure does not cause delays; the consensus is to keep talking in the language each caregiver is most comfortable with and count progress across all of them.
Source: https://www.asha.org/public/speech/development/learning-more-than-one-language/
Source: https://www.nhs.uk/start4life/chatplayread
Many monolingual clinicians trained before bilingual-specific guidance was standard. The two ASHA / NHS pages above are shareable as references.
**4. SLP evaluation — when and how?**
The bilingual rule: **if every language the child uses lacks combinations or gestures at the matching CDC age, ask for screening — bilingualism is not a reason to wait.** At 24 months that means combining two words, pointing to body parts, and gestures like kiss / nod.
Source: https://www.cdc.gov/act-early/milestones/2-years.html
Source: https://www.asha.org/public/speech/development/learning-more-than-one-language/
Your daughter has ~30 words combined and isn't yet combining two words in any single language consistently. That puts this on the "ask for a formal screening" side, not watchful waiting.
For an SLP evaluation of a bilingual child, best practice is evaluation **in both languages** the child uses, or at minimum by an SLP trained in bilingual language development — otherwise the evaluation can under-count her skills.
I can't name the local screening / early-intervention program because I don't have your residence on file.
| Today (2026-09-22) | What to do |
| --- | --- |
| Note it | "24 months; ~30 words combined (≈18 Mandarin / 12 English); not yet combining two words in any single language consistently; bilingual exposure (English from you, Mandarin from wife and grandparents); monolingual pediatrician advised dropping one language." |
| Ask | equest a formal developmental screening at the pediatrician, plus a speech-language evaluation covering both English and Mandarin. Share the ASHA bilingual page with the office as a reference. |
Where do you live? That decides which local entry point to point you to for the screening request.