ModernDoc Journal
Symptoms
Explainers for symptoms, warning signs, and when to seek care.
Released guides
- symptom_checkerNovember 3, 2026Automated gates passed · clinician review pending
Stuffy Nose at Night: Causes, Treatment, Care
A stuffy nose at night can make breathing and sleeping difficult. Swollen nasal tissue and extra mucus often restrict airflow through the nose [4,7]. Lying flat may make the blockage more obvious.
- symptom_checkerOctober 6, 2026Automated gates passed · clinician review pending
Abdominal Bloating: Symptoms, Causes and Treatment
This guide explains abdominal bloating symptoms, causes, treatment, and when to seek care. Bloating is a feeling of fullness, pressure, or tightness in the belly [2,5].
- symptom_checkerOctober 6, 2026Automated gates passed · clinician review pending
Fluid in the Knee: Symptoms, Causes, Treatment & Care
Fluid in the knee can cause swelling, pain, stiffness, and reduced movement [5]. This guide covers fluid in the knee: its symptoms, causes, treatment, and when to seek care.
- symptom_checkerOctober 6, 2026Automated gates passed · clinician review pending
Burning Eyes: Causes, Relief, Treatment & Prevention
Burning eyes may follow dryness, allergies, lid swelling, infection, irritants, or an eye injury [1,5,6]. Symptoms may affect one or both eyes [4,6].
- symptom_checkerOctober 5, 2026Automated gates passed · clinician review pending
Swollen Ankles and Feet: Causes, Treatment, Care
Swollen ankles and feet often reflect edema, which means fluid trapped in body tissues[4,8]. Edema often appears in the feet, ankles, and legs[4,8].
- symptom_checkerOctober 5, 2026Automated gates passed · clinician review pending
Swelling Under One Eye: Causes, Treatment, Red Flags
Swelling under one eye can affect an eyelid, nearby skin, eyebrow, or cheek [5,6]. It may occur with redness, itching, pain, bruising, tearing, or discharge [3,6].
- symptom_checkerOctober 5, 2026Automated gates passed · clinician review pending
Acute Diarrhea: Causes, Home Care, and Medical Help
This guide explains acute diarrhea causes, home care, and when to seek medical help. It covers hydration, food, medicine cautions, warning signs, and special concerns for children.
- symptom_checkerOctober 5, 2026Automated gates passed · clinician review pending
Liver Pain: Symptoms, Location, Causes & Care
Liver pain can be hard to identify because the abdomen contains many organs [1,5]. Upper abdominal pain may come from the liver, gallbladder, stomach, pancreas, kidney, or muscles [1,5].
- symptom_checkerOctober 5, 2026Automated gates passed · clinician review pending
Dry Cough: Causes, Home Care, and Warning Signs
A dry cough can be irritating, tiring, and hard to ignore. It may follow an infection or arise from several other causes.
- symptom_checkerOctober 4, 2026Automated gates passed · clinician review pending
Hip Pain: Symptoms, Causes, Treatment and Care
Hip pain may start in the joint or nearby muscles and tendons [3,8]. It may also come from the lower back, abdomen, or pelvis [3]. This can make the source hard to identify.
- symptom_checkerOctober 4, 2026Automated gates passed · clinician review pending
Gallbladder Pain: Symptoms, Causes and Treatment
Gallbladder pain may begin after eating or become constant as swelling develops[1,2]. Gallstones are the most common cause of pain linked to the gallbladder[8].
- symptom_checkerOctober 4, 2026Automated gates passed · clinician review pending
Heel Pain: Symptoms, Causes, Treatment & Care
Heel pain can affect the bottom, back, or sides of the heel [4,6]. It can make walking and daily tasks difficult [4]. Plantar heel pain can also reduce physical function and quality of life [3].
- symptom_checkerOctober 4, 2026Automated gates passed · clinician review pending
Hearing Loss: Causes, Testing, Treatment & Prevention
Hearing loss may start at once or develop over time. It can affect one or both ears. It can range from mild to profound [1,3].
- symptom_checkerOctober 3, 2026Automated gates passed · clinician review pending
Heart Palpitations: Symptoms, Causes and Care
Heart palpitations may feel like racing, pounding, fluttering, flip-flopping, or skipped heartbeats [6,9]. They often cause worry, but many cases are harmless [1,9].
- symptom_checkerOctober 3, 2026Automated gates passed · clinician review pending
Constipation: Causes, Treatment and Warning Signs
Constipation changes how often or how easily a person passes stool[4,7]. It may follow changes in diet, routine, activity, or medicine use[4,5]. Another health problem may also play a role[4,5].
- symptom_checkerOctober 3, 2026Automated gates passed · clinician review pending
Tinnitus: Symptoms, Causes, Treatment and Care
Tinnitus means hearing sound without an outside source [1,3]. Many people call it ringing in the ears. It may also sound like buzzing, hissing, clicking, or roaring [1,2].
- symptom_checkerOctober 2, 2026Automated gates passed · clinician review pending
Indigestion: Symptoms, Causes, Treatment & Red Flags
Indigestion is a group of digestive symptoms. It is not one specific disease [8]. It may cause pain, burning, or discomfort in the upper abdomen [2,8].
- symptom_checkerOctober 1, 2026Automated gates passed · clinician review pending
Yellow Mucus and Phlegm: Meaning and Warning Signs
Yellow mucus from the nose often appears during a cold or another breathing illness[4,6]. Yellow phlegm may also occur during an infection in the lungs or airways[2,6].
- symptom_checkerSeptember 25, 2026Automated gates passed · clinician review pending
Middle Back Pain Causes, Relief, Treatment and Prevention
Middle back pain may start after strain, poor posture, repeated work, injury, or a sudden twist [7]. Arthritis, scoliosis, and disc problems can also cause pain in this area [7]. Sometimes the pain can have other causes.
- symptom_checkerSeptember 25, 2026Automated gates passed · clinician review pending
Upper Back Pain: Causes, Relief, Treatment, Prevention
Upper back pain can disrupt work, sleep, exercise, and daily tasks. It may come from the spine, back muscles, or shoulder blade area[7]. It may also come from a health problem inside the body[7]. The pain may come from different sources.
- symptom_checkerAugust 18, 2026Automated gates passed · clinician review pending
Sharp Lower Left Abdominal Pain: Causes and Care
This guide covers sharp lower left abdominal pain, called LLQ pain here. It explains key symptoms, causes, care choices, and warning signs.
- symptom_checkerAugust 17, 2026Automated gates passed · clinician review pending
Sore Throat and Ear Pain: Causes and Care
Sore throat and ear pain often occur together, but discomfort may not start in both places. Pain from the throat can be felt in the ear because nearby areas share nerve pathways [5].
- symptom_checkerAugust 16, 2026Automated gates passed · clinician review pending
Skin Lesions: Symptoms, Types, Causes & Care
A skin lesion is an area that differs from the skin around it [3,5]. It may look like a bump, rash, sore, blister, growth, or unusual color [1,3].
- symptom_checkerAugust 16, 2026Automated gates passed · clinician review pending
Elbow Pain: Symptoms, Causes, Treatment and Care
Elbow pain can result from overuse, injury, arthritis, bursitis, nerve pressure, or pain from another area [5,9]. It may feel sharp, aching, constant, or worse during movement [3,9].
- symptom_checkerAugust 16, 2026Automated gates passed · clinician review pending
Loss of Smell: Causes, Tests, Treatment and Care
Loss of smell may start at once or develop over time [3,5]. It can affect food, mood, safety, and daily life [1,4]. Smell helps people notice smoke, gas leaks, and spoiled food [1,4].
- symptom_checkerAugust 13, 2026Automated gates passed · clinician review pending
Tooth Sensitivity Causes, Treatment & Dentist Visits
Tooth sensitivity often feels like a short, sharp pain after a common trigger[3,6]. Cold, heat, sweets, acids, air, touch, and brushing can bring on the pain[3,6].
- symptom_checkerAugust 13, 2026Automated gates passed · clinician review pending
Bad Breath: Causes, Treatment, Prevention and Care
Bad breath, also called halitosis, means an unpleasant odor in exhaled air[1]. It may be brief or may last over time. Morning breath is often short-lived[7].
- symptom_checkerAugust 13, 2026Automated gates passed · clinician review pending
Hair Loss: Causes, Tests, Treatment, When to Get Help
Hair loss may be short-term or permanent. It may cause slow thinning, sudden shedding, or bald patches[6,10]. Alopecia means hair loss from an area where hair should grow[1].