Symptoms of underlying health conditions can be subtler than you think. Many common medical issues may not cause obvious or severe symptoms but can still significantly impact your wellbeing. There are some symptoms you can sleep off—and some you should never ignore. Here are 27 common health symptoms doctors say you should always take seriously. Symptom Checker Check on one or more symptoms to find possible causes. About this Symptom Checker. Find possible causes of symptoms in children and adults. See our Symptom Checker. Easy and quick to use, simply enter all your symptoms to get a list of possible conditions along with medical guides for each explaining causes, symptoms, diagnosis and treatment options. Searching for the cause of your medical symptoms? MediFind's powerful symptom checker tool helps you find a possible diagnosis. WebMD Symptom Checker is designed with a body map to help you understand what your medical symptoms could mean, and provide you with the trusted information you need to help make informed decisions in your life for better health. Signs and symptoms are also applied to physiological states outside the context of disease, as for example when referring to the signs and symptoms of pregnancy, or the symptoms of dehydration. Sometimes a disease may be present without showing any signs or symptoms when it is known as being asymptomatic. [14] List of medical symptoms 10:23 List of medical symptoms Medical symptoms refer to the manifestations or indications of a disease or condition, perceived and complained about by the patient. [1][2] Patients observe these symptoms and seek medical advice from healthcare professionals. Enter your symptoms into our Symptoms Checker to see a list of matching conditions, plus advice on when to see your doctor.