Overweight: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Overweight?
A primary care doctor usually manages overweight first. Some patients see a bariatric physician, a doctor with special training in weight and metabolism. If surgery or another specialist is needed, the primary care doctor will make a referral. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What does it mean to be overweight?
Being overweight means carrying more body fat than is considered healthy for your height. Doctors measure this with body mass index, a number comparing weight to height. A body mass index between 25 and 29.9 is usually called overweight, and extra weight can raise the chance of other health problems.
What it is
Overweight is a condition in which the body stores extra fat. Doctors use body mass index, or BMI, as a screening tool. It does not measure fat directly but gives a quick estimate. A BMI of 25 to 29.9 is overweight; 30 or higher is obesity.
Symptoms
Being overweight does not always cause obvious symptoms, but some people feel tired or get out of breath during activity. It can cause joint pain, especially in the knees and hips, and some people snore or have sleep apnea.
Causes and who gets it
Overweight happens when the body takes in more energy than it burns. Causes include high-calorie foods, inactivity, poor sleep, certain medicines, and hormone problems. Genes play a role, so it can run in families. It can affect anyone but is more common with age.
How doctors diagnose it
Doctors diagnose overweight by measuring height and weight to calculate BMI. They may also measure the waist, because belly fat raises health risks, and may order blood tests to check for conditions like high blood sugar or high cholesterol.
Treatment
Treatment focuses on healthy eating, regular activity, and better sleep, with a goal of slow, steady weight loss. A doctor may suggest working with a dietitian or setting small goals. Prescription medicines can help in some cases, and weight loss surgery is an option for severe obesity.
When to see a doctor
Talk to a doctor if you gain weight quickly without a clear reason or if extra weight makes daily activities hard. Seek care for constant tiredness, trouble breathing at night, or joint pain. Regular checkups help catch related problems early.
How a direct primary care or concierge doctor fits in
A direct primary care doctor can manage overweight directly, charging a flat monthly fee instead of billing insurance; a concierge doctor works similarly but usually charges more and often works alongside insurance. They often have longer appointments, allowing time to build a personal plan covering diet, activity, sleep, and follow-up, and can order lab tests, prescribe weight loss medicines, and refer to a specialist when needed.
Common questions
What should I know about being overweight?
People often ask whether BMI is always accurate. It is a useful screening tool but does not account for muscle mass, so some athletic people are labeled overweight even with low body fat.
Another common question is whether weight loss medicines are safe. They can help some people but have side effects and are not right for everyone. A doctor can explain the options and risks.
Many people ask how fast weight should come off. Most experts consider one to two pounds per week a reasonable pace.
Some wonder if being overweight always leads to disease. It raises the risk of several conditions but does not guarantee them, and healthy habits can lower that risk.
Sources
- Centers for Disease Control and Prevention - About Healthy Weight and Growth | Healthy Weight and Growth
- NIH Genetic and Rare Diseases Information Center - X-linked intellectual disability-short stature-overweight syndrome
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
