Adult Autism: Symptoms, Diagnosis and Treatment

Autism spectrum disorder (ASD) is a neurodevelopmental condition that can affect communication, social interaction, sensory processing and patterns of behavior or interests. Although autism begins early in development, some people are not diagnosed until adulthood.

An evaluation can help adults better understand their experiences, strengths and support needs.

Questions? Call (909) 206-4057

Autism symptoms vary considerably from one person to another. Some autistic adults need substantial daily support, while others live independently but experience challenges with social communication, sensory sensitivities, changes in routine or managing everyday demands.

Autism Symptoms

Why Adult Autism May Go Unrecognized

Adult autism signs and symptoms can be overlooked when a person has learned to mask or hide their difficulties. Some adults consciously copy social behaviors, rehearse conversations or force eye contact to fit social expectations. This masking can be mentally exhausting and may contribute to anxiety, burnout or delayed diagnosis.

Common adult autism signs and symptoms may include:

  • Difficulty understanding social cues, facial expressions or tone of voice

  • Trouble starting or maintaining conversations

  • Feeling uncomfortable or exhausted in social situations

  • Preferring routines and becoming distressed by unexpected changes

  • Intense or highly focused interests

  • Sensitivity to sounds, lights, textures, smells or crowded environments

  • Repetitive movements, behaviors or speech patterns

  • Difficulty expressing or recognizing emotions

  • Needing extra time to process information or respond

  • Feeling overwhelmed or experiencing shutdowns in stressful situations

Having one or more of these characteristics does not necessarily mean that someone has autism. A professional evaluation is needed for an accurate diagnosis.

Adult Autism Signs and Symptoms

An autism evaluation is a comprehensive assessment performed by a qualified professional with experience diagnosing autism in adults. It may include questions about social communication, relationships, sensory experiences, routines, repetitive behaviors, focused interests and childhood development.

The clinician may also use questionnaires or structured assessment tools. When appropriate and with permission, information from a parent, family member, or another person familiar with the individual’s childhood may be helpful. There is no blood test, brain scan, or single questionnaire that can diagnose autism.

Autism Evaluation

ASD is a clinical diagnosis typically made by a specialist, using the DSM-5 diagnostic criteria for ASD

An adult autism diagnosis is based on a detailed clinical assessment and recognized diagnostic criteria. The clinician looks for lifelong patterns involving social communication and interaction, along with restricted or repetitive behaviors, interests or sensory differences. 

The evaluation may also consider conditions that can occur alongside autism or cause similar symptoms, including ADHD, anxiety, depression, obsessive-compulsive disorder and trauma-related conditions.

Adult Autism Diagnosis

Treatments for autism disorder do not aim to cure autism or change who an autistic person is. Instead, services and support are personalized to address the challenges that interfere with daily functioning, relationships, education, employment or emotional well-being.

Support may include psychotherapy, social or communication support, occupational therapy, assistance with sensory needs, executive-function strategies and workplace or educational accommodations.

Treatments for Autism Disorder

Autism Treatment for Adults

Autism treatment for adults should be individualized according to the person’s goals, strengths and support needs.

A care plan may focus on: Managing anxiety, Improving daily organization, Developing communication strategies, Preventing burnout or Addressing difficulties at work and in relationships. The most appropriate support depends on the Individual.

Some adults benefit mainly from education and practical accommodations, while others may need ongoing behavioral, psychological or medical care.

Behavioral Interventions

Applied Behavior Analysis (ABA):

  • Uses positive reinforcement to develop communication, social and daily-living skills.

Developmental approaches:

  • Promote communication, social interaction, joint attention and play skills.

Focused interventions:

  • Address specific needs, such as social skills or unsafe behaviors.

Early intervention can improve communication, learning and daily functioning.

Additional Non-medication Interventions

Speech-language therapy:

  • Supports language and communication.

Occupational therapy:

  • Improves sensory, fine-motor and daily-living skills.

Physical therapy:

  • Supports movement, balance and gross-motor skills.

Cognitive behavioral therapy (CBT):

  • Helps manage anxiety, depression, stress and emotional regulation.

Autism Medication

There is currently no medication that cures autism or treats all of its core characteristics. However, medication may be considered to manage certain symptoms or co-occurring medical and psychiatric conditions that affect a person’s functioning, safety, or quality of life.

Depending on the individual’s symptoms, age, diagnoses, medical history, and treatment needs, a clinician may consider:

  • Severe irritability, aggression, self-injurious behavior, or severe behavioral symptoms: Atypical antipsychotic medications such as risperidone (Risperdal) or aripiprazole (Abilify) may be considered. These medications are FDA-approved for irritability associated with autism in specific pediatric age groups. Their use for this purpose in autistic adults is off-label and requires careful evaluation and monitoring.

  • Co-occurring ADHD: Treatment may include stimulant or nonstimulant medications such as methylphenidate (Ritalin or Concerta), amphetamine-based medications (Adderall or Vyvanse), atomoxetine (Strattera), or guanfacine extended-release (Intuniv).

  • Co-occurring anxiety or depression: Antidepressants, including selective serotonin reuptake inhibitors (SSRIs), such as sertraline (Zoloft), fluoxetine (Prozac), or escitalopram (Lexapro), may be prescribed when clinically appropriate.

  • Sleep disturbances: Melatonin or other treatments may sometimes be considered after evaluating possible causes of the sleep problem.

This list is not exhaustive and includes only some commonly considered examples. Not every medication is appropriate or FDA-approved for every age group, condition, or patient.

Medication should be prescribed only after a comprehensive clinical evaluation. Your provider will discuss the expected benefits, possible side effects, medication interactions, monitoring requirements, and nonmedication alternatives before recommending a treatment plan. Never begin, stop, or change a medication without consulting the prescribing clinician.

**Important medication information: The medications listed above are provided as general educational examples only. This list is not exhaustive, and mentioning a medication does not constitute an endorsement, recommendation, or guarantee that it will be prescribed. Some uses may be off-label, and not every medication is appropriate or FDA-approved for every patient, age group, symptom, or condition.

Frequently Asked Questions

If you have noticed lifelong difficulties with social communication, sensory sensitivity, routines or focused interests, an adult autism evaluation may provide greater clarity.

Kind Health offers Telehealth psychiatric services for adults throughout California. Contact us today to request an appointment and learn more about adult autism diagnosis and personalized treatment options.

Schedule an Adult Autism Evaluation

Call to Book an Appointment → 909 206 4057

Kind Health offers convenient Telehealth evaluations for adults in California. You can meet with an experienced provider from the privacy of your home and discuss your symptoms, developmental history and concerns.

Contact Kind Health to confirm whether an adult autism evaluation is appropriate for you and to learn what information may be needed before your appointment.

Have a Question? Call → 909 206 4057

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