- Acute Flaccid Myelitis
- Alzheimer’s Disease
- Arteriovenous Malformations
- Attention Deficit Hyperactivity Disorder
- Back Pain
- Brain Aneurysm
- Brain Tumors
- Carpal Tunnel Syndrome
- Childhood Brain Tumors
- Delirium
- Dementia
- Hemorrhagic Stroke
- Ischemic Stroke
- Memory
- Meningitis
- Mild Cognitive Impairment
- Movement Disorders
- Multiple Sclerosis
- Neuroblastoma
- Neuromuscular Disorders
- Parkinson’s Disease
- Polio and Post-Polio Syndrome
- Speech and Language Problems in Children
- Stroke
- Transient Ischemic Attack
- Tremor
- Walking Problems
- West Nile Virus
- A1C
- Blood Glucose
- Diabetes
- Diabetes and Pregnancy
- Diabetes Complications
- Diabetes in Children and Teens
- Diabetes Medicines
- Diabetes Type 1
- Diabetes Type 2
- Diabetic Diet
- Diabetic Eye Problems
- Diabetic Foot
- Diabetic Heart Disease
- Diabetic Kidney Problems
- Diabetic Nerve Problems
- How to Prevent Diabetes
- Hyperglycemia
- Metabolic Syndrome
- Prediabetes
- Abortion
- Breast Cancer
- Breast Diseases
- Breast Reconstruction
- Breastfeeding
- Cervical Cancer
- Cervical Cancer Screening
- Cesarean Delivery
- Childbirth
- Ectopic Pregnancy
- Endometriosis
- Female Infertility
- Health Problems in Pregnancy
- High Blood Pressure in Pregnancy
- HIV and Pregnancy
- Hormone Replacement Therapy
- HPV
- Hysterectomy
- Infections and Pregnancy
- Mammography
- Mastectomy
- Menopause
- Menstruation
- Miscarriage
- Ovarian Cancer
- Ovarian Cysts
- Ovarian Disorders
- Pelvic Floor Disorders
- Pelvic Inflammatory Disease
- Pelvic Pain
- Period Pain
- Polycystic Ovary Syndrome
- Pregnancy
- Pregnancy and Drug Use
- Pregnancy and Opioids
- Premenstrual Syndrome
- Prenatal Care
- Prenatal Testing
- Primary Ovarian Insufficiency
- Sexual Problems in Women
- Stillbirth
- Teenage Pregnancy
- Trichomoniasis
- Tubal Ligation
- Uterine Cancer
- Uterine Diseases
- Uterine Fibroids
- Vaginal Bleeding
- Vaginal Cancer
- Vaginal Diseases
- Vaginitis
- Vulvar Cancer
- Vulvar Disorders
- Yeast Infections
- Alcohol
- Calcium
- Child Nutrition
- Cholesterol
- Cholesterol Levels: What You Need to Know
- Cholesterol Medicines
- DASH Eating Plan
- Eating Disorders
- Food Allergy
- HDL: The “Good” Cholesterol
- High Cholesterol in Children and Teens
- How to Lower Cholesterol
- How to Lower Cholesterol with Diet
- Infant and Newborn Nutrition
- LDL: The “Bad” Cholesterol
- Malabsorption Syndromes
- Nutrition for Older Adults
- Pregnancy and Nutrition
- Toddler Nutrition
- Triglycerides
- VLDL Cholesterol
- Alpha-1 Antitrypsin Deficiency
- Ataxia Telangiectasia
- Brain Malformations
- Cerebral Palsy
- Charcot-Marie-Tooth Disease
- Chiari Malformation
- Cleft Lip and Palate
- Color Blindness
- Congenital Heart Defects
- Craniofacial Abnormalities
- Cystic Fibrosis
- Ehlers-Danlos Syndrome
- Fetal Alcohol Spectrum Disorders
- Friedreich Ataxia
- Genetic Counseling
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- Animal Bites
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- Asthma in Children
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- Concussion
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- Foot Injuries and Disorders
- Fractures
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- Heel Injuries and Disorders
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- Insect Bites and Stings
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- Mosquito Bites
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- Rotator Cuff Injuries
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- Tick Bites
- Toe Injuries and Disorders
- Traumatic Brain Injury
- Wrist Injuries and Disorders
- Acute Bronchitis
- Bird Flu
- Chronic Bronchitis
- COPD
- COVID-19 (Coronavirus Disease 2019)
- Croup
- E-Cigarettes
- Fistulas
- Flu
- Granulomatosis with Polyangiitis
- H1N1 Flu (Swine Flu)
- Legionnaires’ Disease
- Lung Cancer
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- Sleep Apnea
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- Anatomy
- Assisted Reproductive Technology
- Birth Control
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- Gonorrhea
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- Male Infertility
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- Prostate Cancer
- Prostate Cancer Screening
- Prostate Diseases
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- Sexual Problems in Men
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- Abdominal Pain
- Bad Breath
- Bleeding
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- Bruises
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- Constipation
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- Diarrhea
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- Edema
- Fainting
- Fever
- Frostbite
- Gas
- Gastrointestinal Bleeding
- Headache
- Heartburn
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- Itching
- Jaundice
- Nausea and Vomiting
- Pain
- Rare Diseases
- Raynaud’s Disease
- Sciatica
- Speech and Communication Disorders
- Stuttering
Speech and Communication Disorders
Summary
Many disorders can affect our ability to speak and communicate. They range from saying sounds incorrectly to being completely unable to speak or understand speech. Causes include:
- Hearing disorders and deafness
- Voice problems, such as dysphonia or those caused by cleft lip or palate
- Speech problems like stuttering
- Developmental disabilities
- Learning disabilities
- Autism spectrum disorder
- Brain injury
- Stroke
Some speech and communication problems may be genetic. Often, no one knows the causes. By first grade, about 5% of children have noticeable speech disorders. Speech and language therapy can help.
NIH: National Institute on Deafness and Other Communication Disorders
National Institute on Deafness and Other Communication Disorders
Genetics
- 22q13.3 deletion syndrome: MedlinePlus Genetics National Library of Medicine
- 47,XYY syndrome: MedlinePlus Genetics National Library of Medicine
- Epilepsy-aphasia spectrum: MedlinePlus Genetics National Library of Medicine
- PURA syndrome: MedlinePlus Genetics National Library of Medicine
- Triple X syndrome: MedlinePlus Genetics National Library of Medicine
Specifics
- Aphasia vs. Apraxia American Stroke Association
- Apraxia of Speech National Institute on Deafness and Other Communication Disorders
Patient Handouts
- Apraxia Medical Encyclopedia
- Dysarthria Medical Encyclopedia
- Phonological disorder Medical Encyclopedia
- Selective mutism Medical Encyclopedia
- Speech impairment in adults Medical Encyclopedia
Living With
- Assistive Devices for People with Hearing, Voice, Speech, or Language Disorders National Institute on Deafness and Other Communication Disorders
Clinical Trials
- ClinicalTrials.gov: Communication Disorders National Institutes of Health
- ClinicalTrials.gov: Language Disorders National Institutes of Health
- ClinicalTrials.gov: Speech Disorders National Institutes of Health
Encyclopedia
- Communicating with someone with dysarthria Medical Encyclopedia
Find an Expert
- Directory of Organizations (Deafness and Communication Disorders) National Institute on Deafness and Other Communication Disorders
- National Institute on Deafness and Other Communication Disorders National Institute on Deafness and Other Communication Disorders
Reference Desk
- NIDCD Glossary National Institute on Deafness and Other Communication Disorders
Journal Articles
Statistics and Research
- Quick Statistics about Voice, Speech, and Language National Institute on Deafness and Other Communication Disorders
Start Here
- Speech and Language Impairments Center for Parent Information and Resources
- Voice, Speech, and Language National Institute on Deafness and Other Communication Disorders
Teenagers
- Speech Problems Nemours Foundation
Related Issues
- Speech to Speech Relay Service Federal Communications Commission
- Telecommunications Relay Service (TRS) Federal Communications Commission
- Telecommunications Relay Services National Institute on Deafness and Other Communication Disorders