The DHEA-S blood test is a common hormone test that can give doctors important clues about how a child’s adrenal glands and hormone system are working. This guide explains the test in clear, everyday language so you can feel more prepared and confident when it is recommended for your child.
What Is DHEA-S and Why Does It Matter?
DHEA-S stands for dehydroepiandrosterone sulfate, a hormone made mainly by the adrenal glands, which sit just above the kidneys. It serves as a building block that the body uses to produce other hormones, including androgens (often called “male” hormones) and estrogens (often called “female” hormones), in people of all sexes.
In children, DHEA-S levels naturally rise before and during puberty as the body prepares for growth spurts and the development of secondary sexual characteristics such as body hair and changes in body shape. Abnormal levels of DHEA-S can signal that the adrenal glands are working too hard, not hard enough, or are affected by a medical condition that needs attention.
Why Might a Child Need a DHEA-S Test?
Doctors usually do not order a DHEA-S test as part of routine checkups. Instead, they recommend it when a child has symptoms that suggest a problem with hormone production or adrenal gland function. The goal is to better understand what is happening inside the body and to help guide further testing or treatment.
Common reasons a healthcare provider might order a DHEA-S test for a child or teen include:
- Signs of puberty starting much earlier than expected (such as underarm or pubic hair, body odor, or rapid growth in a young child).
- Puberty that seems delayed or slow to start compared with peers.
- Development of unexpected “male-type” features in girls, such as facial hair, deepening of the voice, or increased muscle bulk.
- Changes in menstrual periods in teens, such as irregular cycles or periods that stop without a clear reason.
- Suspicion of a problem with the adrenal glands, ovaries, or testicles based on symptoms, growth patterns, or other test results.
How DHEA-S Fits into the Hormone Picture
The DHEA-S test rarely stands alone. Hormones work together in a network, and DHEA-S is just one part of that system. When a child has symptoms of a hormone imbalance, doctors often order a panel of tests to see the whole picture rather than relying on a single number.
Other tests that may be ordered along with DHEA-S include:
- Testosterone or other androgens to look for excess “male-type” hormones.
- Estrogen or estradiol to understand ovarian hormone activity in girls.
- Luteinizing hormone (LH) and follicle-stimulating hormone (FSH) to see how the brain is signaling the ovaries or testicles.
- Cortisol and other adrenal hormones to check overall adrenal function.
Typical Age Patterns of DHEA-S
DHEA-S levels change over the course of life. While each child is unique, there are some general patterns that help doctors interpret results. Newborns can have relatively high levels that drop shortly after birth. During early childhood, levels usually stay low until the adrenal glands become more active again.
As children approach late childhood and early puberty, DHEA-S levels begin to rise, typically before obvious physical changes like breast development or testicular enlargement are seen. Levels generally peak in late adolescence or early adulthood and then slowly decline across adulthood.
| Life Stage | Typical DHEA-S Activity |
|---|---|
| Newborn period | Higher levels at birth that fall in infancy as adrenal activity shifts. |
| Early childhood | Generally low, stable levels with minimal hormone-driven physical changes. |
| Late childhood (adrenarche) | Gradual rise in DHEA-S as the adrenal glands become more active, often before visible puberty. |
| Puberty and adolescence | Significant increase in DHEA-S supporting growth and development of secondary sexual characteristics. |
| Adulthood | Levels peak in early adulthood and slowly decrease with age. |
Conditions Linked to Abnormal DHEA-S Levels
An abnormal DHEA-S result does not automatically mean a child has a serious disease, but it can be a clue that something needs further evaluation. Both higher-than-expected and lower-than-expected levels can have different possible explanations.
Examples of conditions that may be associated with unusual DHEA-S levels include:
- Congenital adrenal hyperplasia (CAH): A group of inherited conditions in which the adrenal glands make too much or too little of certain hormones, sometimes leading to very high DHEA-S.
- Adrenal tumors: Both noncancerous and cancerous growths of the adrenal gland can alter DHEA-S production.
- Polycystic ovary syndrome (PCOS) in teens: A hormone condition in girls and young women that can involve elevated androgens, irregular periods, and sometimes higher DHEA-S levels.
- Adrenal underactivity: In some cases, very low DHEA-S may be one sign of adrenal glands that are not producing enough hormones overall.
Preparing Your Child for the DHEA-S Test
Preparation for a DHEA-S test is usually simple, but following the laboratory’s instructions helps ensure the most accurate results. In many cases, children do not need to fast, though some clinics may combine DHEA-S with other tests that do require fasting or a specific time of day.
Before the appointment, parents can help by:
- Asking the healthcare provider if any medicines or supplements should be paused before testing.
- Explaining in simple terms that a small amount of blood will be taken from the arm and that the test is to help the doctor keep them healthy.
- Bringing a comfort item, such as a favorite toy, blanket, or book, especially for younger children.
- Planning a calm, unhurried schedule around the appointment to reduce stress and rushing.
What Happens During the Blood Draw?
The DHEA-S level is measured from a small sample of blood, usually taken from a vein in the arm. The entire process is brief, typically lasting only a few minutes from start to finish, although waiting time at the lab can vary.
During the blood draw, the healthcare professional will usually:
- Clean the skin with an antiseptic pad where the needle will go in.
- Wrap an elastic band (tourniquet) around the upper arm to help the vein fill with blood.
- Insert a small needle into the vein and collect blood into one or more tubes.
- Remove the needle, apply gentle pressure, and then place a small bandage on the site.
Helping a Child Cope with Needle Anxiety
Many children worry about blood tests and needles, but there are practical ways parents can ease fear and discomfort. A calm, honest approach usually works better than trying to hide the fact that a needle will be involved.
Helpful strategies include:
- Practicing deep breathing or counting games to keep the child focused on something other than the needle.
- Allowing a younger child to sit on a parent’s lap or hold a hand during the test.
- Using distraction, such as a video, music, or a favorite story, during the blood draw.
- Offering praise and a small reward after the test, reinforcing that they handled a difficult situation well.
Possible Side Effects and Risks
The DHEA-S test is considered very safe. The main risks come from the blood draw itself and are usually minor and temporary. Most children feel only a brief sting when the needle goes in and may have a small bruise afterward.
Side effects can include:
- Soreness or tenderness at the needle site for a short time.
- A small bruise or discoloration around the puncture area.
- Dizziness or lightheadedness in children who are anxious or sensitive to blood draws.
Serious problems such as infection or repeated bleeding are rare. If redness, swelling, warmth, or ongoing pain develops at the site over the next day or two, parents should contact the child’s healthcare provider.
Understanding DHEA-S Results
Interpreting a DHEA-S result is not as simple as labeling it “good” or “bad.” Each laboratory uses its own reference ranges that take into account age and sex, and those ranges can vary from one lab to another. A value that is normal for a teenager might be too high for a younger child, which is why age-specific interpretation is essential.
Key points about understanding results include:
- Normal levels vary widely and are always interpreted in the context of the child’s age, sex, growth, and development.
- Higher-than-expected levels may suggest that the adrenal glands are producing excess androgens or that there is an underlying condition affecting hormone production.
- Lower-than-expected levels may indicate decreased adrenal activity or another hormone problem, especially when combined with symptoms such as fatigue, poor growth, or low blood pressure.
When Further Testing Is Needed
A single abnormal DHEA-S test rarely provides all the answers. If results are far outside the expected range or do not match the child’s symptoms, the doctor may repeat the test or order additional evaluations. In some situations, a referral to a pediatric endocrinologist—a doctor who specializes in hormones in children—may be recommended.
Depending on the situation, follow-up tests might include:
- Additional blood tests for other adrenal or sex hormones.
- Imaging tests, such as an ultrasound or MRI, to look at the adrenal glands or reproductive organs.
- Genetic testing if an inherited condition like congenital adrenal hyperplasia is suspected.
Supporting Your Child After the Test
Once the blood work is done, children usually return to their normal activities right away. Most do not need any special care, though it can be helpful to encourage drinking fluids and gentle movement of the arm if it feels stiff.
Parents can support their child by:
- Checking the bandage after a few hours and replacing it if it becomes loose or dirty.
- Watching for any unusual swelling, redness, or ongoing pain at the blood draw site.
- Reassuring the child that the test is part of making sure their body is working well.
Healthy Habits and Hormone Balance
While many hormone conditions are not caused by anything a child or parent has done, healthy lifestyle habits still play an important role in overall hormone balance. Good sleep, balanced nutrition, and regular physical activity all support normal growth and development.
General wellness habits that can help support a child’s hormone health include:
- Encouraging a regular sleep schedule with enough hours of rest for the child’s age.
- Offering a variety of foods, including fruits, vegetables, whole grains, lean proteins, and healthy fats.
- Promoting daily movement and outdoor play as appropriate for the child’s ability and interests.
- Limiting sugary drinks and highly processed snack foods that offer little nutritional value.
Frequently Asked Questions About the DHEA-S Test
Is the DHEA-S test painful?
Most children feel a quick pinch or sting when the needle goes in, followed by mild soreness that fades quickly. Preparing a child with honest, simple explanations and using calming techniques can greatly reduce distress.
How long does it take to get DHEA-S results?
Turnaround times vary, but many laboratories report DHEA-S results within a few days. The doctor’s office will usually contact you to discuss the findings or review them at a follow-up visit.
Can medications or supplements affect DHEA-S levels?
Certain medicines and hormone-related supplements can influence blood hormone levels, including DHEA-S. It is important to tell the healthcare provider about all prescription drugs, over-the-counter medicines, and supplements your child takes.
Is DHEA-S the same as DHEA supplements sold in stores?
DHEA-S is the form of the hormone that circulates in the blood and is measured by the test, while many over-the-counter products contain DHEA or related compounds. Hormone supplements should never be given to children without direct supervision and guidance from a healthcare professional.
What if my child’s DHEA-S level is abnormal?
An abnormal result is a signal to look more closely but does not automatically mean a serious condition. The doctor will interpret the number in the context of your child’s age, symptoms, and other test results, then decide whether to repeat the test, order more evaluations, or refer to a specialist.
Key Takeaways for Parents
- The DHEA-S test measures a hormone made by the adrenal glands that helps the body produce other important hormones.
- Doctors order this test when they suspect a hormone imbalance, early or delayed puberty, or a problem with the adrenal glands or reproductive organs.
- The blood draw is quick and low risk, and parents can greatly ease a child’s anxiety with preparation and comfort strategies.
- Results are always interpreted alongside age, symptoms, and other tests, and an abnormal level usually leads to further discussion rather than an instant diagnosis.
