Symptoms A–Z
Start with the symptom that bothers you most. Each guide explains the common and serious causes, the warning signs that need urgent care, and what usually helps.
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A
- Abdominal Bloating
- Abdominal Cramping
- Abdominal Discomfort
- Abdominal Distention
- Abdominal Pain
- Abnormal Appearing Skin
- Abnormal Bleeding
- Abnormal Breathing Sounds
- Abnormal Eye Movements
- Abnormal Involuntary Movements
- Abnormal Movement of Eyelid
- Abnormal Reflexes
- Abnormal Vaginal Bleeding
- Absence of Menstruation (Amenorrhea)
- Abusing Alcohol
- Aching
- Aching Eyes
- Acid Reflux (Symptom)
- Acne
- Acne and Pimples
- Aggression
- Aggressive Behavior
- Agitation
- Alcohol Abuse (Signs and Self-Check)
- Allergic Reaction (Symptoms)
- Altered Consciousness
- Altered Mental Status
- Amnesia (Memory Loss)
- Anal Discharge
- Anal Itching
- Anal Pain
- Anaphylaxis Symptoms
- Anemia (as a Sign)
- Angina (Chest Pain)
- Angioedema (Swelling)
- Ankle Pain
- Ankle Stiffness
- Ankle Swelling
- Ankle Weakness
- Antisocial Behavior
- Anxiety and Nervousness
- Apnea
- Arch Pain
- Arm Lump or Mass
- Arm Numbness
- Arm Pain
- Arm Stiffness
- Arm Stiffness or Tightness
- Arm Swelling
- Arm Weakness
- Armpit Pain
- Aspiration
B
- Back Cramps and Spasms
- Back Fatigue
- Back Mass or Lump
- Back Pain
- Back Stiffness or Tightness
- Back Weakness
- Bad Breath
- Balance Problems
- Bedwetting (Enuresis)
- Belching
- Bladder Cancer Symptoms
- Bladder Control Problems
- Bladder Mass
- Bladder Symptoms
- Bleeding
- Bleeding from Ear
- Bleeding From Eye
- Bleeding Gums
- Bleeding or Discharge from Nipple
- Blindness
- Blisters
- Blood Clots During Menstrual Periods
- Blood in Stool (Rectal Bleeding)
- Blood in Urine (Hematuria)
- Bloody Diarrhea
- Bloody Stool
- Blurred Vision
- Blurry Vision
- Blushing
- Body Aches All Over
- Bone Pain
- Bones Are Painful
- Bowel Leakage
- Bowlegged or Knock-Kneed
- Bradycardia (Slow Heart Rate)
- Breast Changes
- Breast Lump
- Breast Lump or Mass
- Breast Pain
- Breast Tenderness
- Breathing Problems
- Brittle Nails
- Bruising
- Bumps on Penis
- Burning Abdominal Pain
- Burning Chest Pain
- Burning Eyes
- Burning Feet
- Burning Sensation
C
- Cachexia (Wasting Syndrome)
- Cancer Fatigue
- Cancer Pain
- Cardiac Arrest (Signs and First Aid)
- Cardiogenic Shock (Signs)
- Carpal Tunnel Symptoms
- Catastrophizing
- Changes in Bowel Habits
- Changes in Stool Appearance
- Chest Congestion
- Chest Pain
- Chest Tightness
- Chills
- Choking
- Chronic Diarrhea
- Chronic Pain
- Cloudy Eye
- Cold Intolerance
- Colic
- Concentration Difficulty
- Concentration Problems
- Confusion
- Constipation
- Coordination Difficulties
- Coordination Problems
- Coryza (Runny Nose)
- Cough
- Coughing in Infants
- Coughing Up Blood (Hemoptysis)
- Coughing Up Sputum (Phlegm)
- Cracked Skin
- Cramping Pain
- Cramps and Spasms
- Cross-Eyed (Strabismus)
D
- Dandruff
- Dark Spots on Skin
- Dark Urine
- Debris Under Nail
- Decreased Appetite
- Decreased Fetal Movement
- Decreased Heart Rate (Bradycardia)
- Decreased Sex Drive
- Deformity
- Dehydration (Symptoms)
- Delayed Puberty
- Delayed Speech
- Delusions or Hallucinations
- Depersonalization
- Depression (Signs and Symptoms)
- Depressive or Psychotic Symptoms
- Depressive Symptoms
- Derealization
- Developmental Delay
- Diaper Rash
- Diarrhea
- Difficulty Breathing (Dyspnea)
- Difficulty Breathing When Lying Down
- Difficulty Eating
- Difficulty in Swallowing (Dysphagia)
- Difficulty Moving Arm
- Difficulty Speaking
- Difficulty Standing
- Difficulty Swallowing
- Difficulty Urinating
- Difficulty Walking
- Difficulty With Fine Motor Skills
- Difficulty With Intercourse
- Diminished Vision
- Distorted Vision
- Dizziness
- Double Vision (Diplopia)
- Drainage in Throat (Post-Nasal Drip)
- Drooling
- Drooping Eyelid
- Drowsiness
- Drug Abuse (Warning Signs)
- Dry Cough
- Dry Eyes
- Dry Lips
- Dry Mouth
- Dry or Flaky Scalp
- Dry or Flaky Skin
- Dry Scalp
- Dry Skin
- Dyspnea (Shortness of Breath)
E
- Ear Discharge
- Ear Fullness
- Ear Itching
- Ear Pain
- Ear Pressure
- Earache
- Early or Late Onset of Menopause
- Easy Bruising
- Edema
- Elbow Lump or Mass
- Elbow Pain
- Elbow Swelling
- Elbow Weakness
- Electric Shock Pain
- Embarrassment
- Emotional Distress
- Emotional Instability
- Emotional Numbing
- Emotional Symptoms
- Epicanthal Folds
- Erectile Dysfunction (Symptom)
- Exaggerated Startle Response
- Excessive Anger
- Excessive Appetite
- Excessive Growth
- Excessive Sweating
- Excessive Tearing
- Excessive Thirst
- Excessive Urination
- Excessive Urination at Night (Nocturia)
- Extreme Fatigue
- Eye Burns or Stings
- Eye Deviation
- Eye Discharge
- Eye Inflammation
- Eye Irritation
- Eye Pain
- Eye Redness
- Eye Strain
- Eye Swelling
- Eye Symptoms
- Eyelid Crusting
- Eyelid Heaviness
- Eyelid Lesion or Rash
- Eyelid Swelling
F
- Facial Flushing
- Facial Irritation
- Facial Pain
- Failure to Thrive (Signs)
- Fainting (Syncope)
- Fast Breathing (Rapid Breathing)
- Fatigue
- Fears and Phobias
- Feeding Problems
- Feeling Cold
- Feeling Hot
- Feeling Ill (Malaise)
- Fever
- Fever and Headache
- Fever in Children
- Finger Deformity
- Finger Numbness
- Finger Pain
- Flaking Skin
- Flank Pain
- Flashbacks
- Flashing Lights in Vision
- Flatulence (Passing Gas)
- Floaters
- Flu-Like Syndrome
- Fluid in Ear
- Fluid in the Lungs (Pulmonary Edema)
- Fluid Leakage
- Fluid Retention (Edema)
- Flushing
- Focal Neurological Deficits
- Focal Weakness
- Food Aversions
- Foot Deformity
- Foot Drop
- Foot or Toe Cramps & Spasms
- Foot or Toe Lump or Mass
- Foot or Toe Pain
- Foot or Toe Stiffness
- Foot or Toe Swelling
- Foot or Toe Weakness
- Foot Pain
- Foot Swelling
- Forearm Pain
- Foreign Body Sensation
- Foreign Body Sensation in Eye
- Foul Odor
- Freckling
- Frequent Infections
- Frequent Menstruation
- Frequent Urination
- Frontal Headache
G
H
- Hair Loss (Alopecia)
- Halitosis
- Hallucinations
- Hand and Finger Pain
- Hand or Finger Cramps and Spasms
- Hand or Finger Lump
- Hand or Finger Numbness
- Hand or Finger Stiffness
- Hand or Finger Swelling
- Hand or Finger Weakness
- Hand Pain
- Hand Stiffness
- Hand Swelling
- Hand Weakness
- Headache
- Hearing Loss
- Heart Palpitations
- Heartburn
- Heaviness
- Heavy Bleeding
- Heavy Menstrual Bleeding
- Heavy Menstrual Flow (Menorrhagia)
- Heel Pain
- Hematuria (Blood in Urine)
- High Blood Pressure (as a Sign)
- High Fever
- Hip Pain
- Hip Stiffness
- Hip Stiffness or Tightness
- Hives
- Hoarse Voice
- Hoarseness
- Hostile Behavior
- Hot Flashes
- Hurts to Breathe (Painful Breathing)
- Hyperactivity
- Hypercalcemia (High Blood Calcium)
- Hyperpigmentation
- Hypersensitivity
- Hypertension Symptoms
- Hypervigilance
- Hypoglycemia (Low Blood Sugar)
- Hypotension (Low Blood Pressure)
- Hysterical Behavior and Conversion Disorder
I
- Image Magnification
- Imbalance
- Impulsivity
- Inability to Walk
- Incontinence of Stool
- Increased Blood Sugar
- Increased Heart Rate (Tachycardia)
- Infant Crying
- Infant Feeding Problems
- Infant Fever
- Infant Rash
- Infant Sleep Problems
- Infant Spitting Up
- Infertility (Trouble Conceiving)
- Insomnia
- Instability
- Intense Fear
- Intermenstrual Bleeding
- Intrusive Thoughts
- Irregular Appearing Scalp
- Irregular Belly Button
- Irregular Heartbeat (Arrhythmia)
- Irregular Menstrual Periods
- Irregular Periods
- Irregular-Appearing Nails
- Irritability
- Irritable Infant
- Itchiness of Eye
- Itching of Scalp
- Itching of Scrotum
- Itching of the Anus (Pruritus Ani)
- Itchy Ear
- Itchy Eyelid
- Itchy Eyes
- Itchy Nose
- Itchy Scalp
- Itchy Skin
J
K
L
- Lack of Growth
- Lacrimation (Excessive Tearing)
- Learning Difficulties
- Leg Cramps or Spasms
- Leg Lump or Mass
- Leg Pain
- Leg Stiffness or Tightness
- Leg Swelling
- Leg Ulcers
- Leg Weakness
- Lethargy
- Limited Mobility
- Limited Range of Motion
- Limping
- Lip Sore
- Lip Swelling
- Liver Cancer Symptoms
- Liver Enlargement (Hepatomegaly)
- Long Menstrual Periods (Menorrhagia)
- Loss of Accommodation
- Loss of Appetite
- Loss of Consciousness
- Loss of Feeling
- Loss of Girth
- Loss of Libido
- Loss of Position Sense
- Loss of Sensation (Numbness)
- Loss of Sex Drive
- Loss of Smell
- Loss of Vibration Sense
- Low Back Cramps
- Low Back Cramps or Spasms
- Low Back Pain
- Low Back Weakness
- Low Birth Weight
- Low Blood Pressure
- Low Libido
- Low Self-Esteem
- Low Urine Output
- Lower Abdominal Pain
- Lower Body Pain
- Lump in Throat (Globus Sensation)
- Lump or Mass
- Lymphedema (Symptoms and Early Signs)
M
- Malaise
- Male Infertility
- Mass in Scrotum
- Mass on Eyelid
- Mass or Swelling Around the Anus
- Melena (Black Tarry Stools)
- Memory Loss
- Memory Problems
- Menstrual Cramps
- Missed Period
- Mood Changes
- Mood Swings
- Morning Sickness
- Morning Stiffness
- Motor Delays
- Mouth Dryness (Dry Mouth)
- Mouth Pain
- Mouth Sores
- Mouth Ulcers
- Movement Problems
- Muscle Aches
- Muscle Cramps
- Muscle Cramps, Contractures or Spasms
- Muscle Pain
- Muscle Spasms
- Muscle Stiffness and Tightness
- Muscle Swelling
- Muscle Wasting
- Muscle Weakness
N
- Nail Discoloration
- Nail Pain
- Nail Problems
- Nail Ridges
- Nail Separation
- Nail Streaks
- Nasal Congestion
- Nausea
- Nausea and Vomiting
- Neck Cramps and Spasms
- Neck Mass
- Neck Pain
- Neck Stiffness or Tightness
- Neck Swelling
- Nerve Pain
- Night Sweats
- Night Vision Problems
- Nightmares
- Nipple Discharge
- Nocturia
- Nosebleed (Epistaxis)
- Numbness
- Numbness in Feet
- Numbness in the Foot
- Numbness of the Hand
- Nystagmus
O
P
- Pain (General)
- Pain During Intercourse (Dyspareunia)
- Pain During Pregnancy
- Pain During Urination
- Pain in Gums
- Pain in Testicles
- Pain Insensitivity
- Pain of the Anus
- Pain or Soreness of Breast
- Pain When Breathing
- Painful Intercourse
- Painful Menstruation (Dysmenorrhea)
- Painful Periods
- Painful Sex
- Painful Sinuses
- Painful Urination (Dysuria)
- Pale Skin
- Pale Stools
- Pale Urine
- Pallor
- Panic Attacks
- Papilledema
- Paralysis
- Paranoia
- Paresthesia
- Passing Gas
- Pelvic Pain
- Pelvic Pressure
- Penile Curvature
- Penile Discharge
- Penile Indentation
- Penile Itching
- Penile Narrowing
- Penile Pain
- Penile Shortening
- Penis Pain
- Penis Redness
- Perianal Itching
- Peripheral Distortion
- Peripheral Edema
- Peripheral Vasoconstriction
- Peripheral Vision Loss
- Persistent Cough
- Persistent Headache
- Persistent Hunger
- Personality Changes
- Photophobia (Light Sensitivity)
- Pins and Needles
- Plugged Feeling in Ear
- Poor Circulation
- Poor Growth
- Poor Posture
- Poor Weight Gain
- Post-Nasal Drip
- Postpartum Problems of the Breast
- Postural Problems
- Pregnancy Fatigue
- Pregnancy Pain
- Premature Ejaculation
- Premenstrual Tension or Irritability
- Problems During Pregnancy
- Problems with Movement
- Problems With Shape or Size of Breast
- Productive Cough
- Projectile Vomiting
- Pruritus (Itching)
- Psychosis (Symptoms)
- Ptosis (Drooping Eyelid)
- Pulling at Ears
- Pulsating Neck Veins
- Pus Draining from Ear
R
- Radiating Pain
- Rapid Heart Rate
- Rapid Heartbeat
- Rapid Pulse
- Recent Pregnancy (Postpartum)
- Recent Weight Loss
- Rectal Bleeding
- Rectal Itching
- Rectal Pain
- Recurrent UTI (Urinary Tract Infections)
- Recurring Infections
- Red Bumps
- Red Eye
- Red Streaks on Skin
- Redness in Ear
- Redness In or Around Nose
- Regurgitation
- Relationship Stress
- Restless Legs
- Restlessness
- Restricted Movement
- Rib Hump
- Rib Pain
- Ringing in Ear (Tinnitus)
- Rumination
- Runny Nose
S
- Salt Craving
- Scalp Flaking
- Scalp Lesions
- Scalp Pain
- Scalp Rash
- Scalp Redness
- Scalp Scaling
- Scanty Menstrual Flow
- Sciatica (Sciatic Nerve Pain)
- Scoliosis (Curved Spine)
- Scrotal Mass
- Scrotal Swelling
- Seizures
- Self-Consciousness
- Sensitivity to Light
- Severe Abdominal Pain
- Severe Cough
- Severe Drop in Blood Pressure
- Severe Dysphagia
- Severe Headache
- Severe Hypotension
- Severe Swelling
- Sharp Abdominal Pain
- Sharp Chest Pain
- Sharp Eye Pain
- Sharp Pain
- Short Stature
- Shortness of Breath
- Shoulder Lump or Mass
- Shoulder Pain
- Shoulder Stiffness or Tightness
- Shoulder Swelling
- Shoulder Weakness
- Side Pain
- Sinus Congestion
- Sinus Pressure
- Skin Bumps
- Skin Burning
- Skin Changes
- Skin Discoloration
- Skin Dryness
- Skin Dryness and Peeling
- Skin Dryness, Peeling, Scaliness or Roughness
- Skin Growth
- Skin Infection
- Skin Infections on Various Body Parts
- Skin Irritation
- Skin Itching (Pruritus)
- Skin Lesion
- Skin Moles
- Skin on Arm or Hand Looks Infected
- Skin on Leg or Foot Looks Infected
- Skin Pain
- Skin Peeling
- Skin Rash
- Skin Redness
- Skin Swelling
- Skin Thickening
- Sleep Apnea Symptoms
- Sleep Disturbances
- Sleep Problems
- Sleepiness (Excessive Daytime Sleepiness)
- Slurring Words (Dysarthria)
- Small Eye Openings
- Smoking Problems
- Smooth Philtrum
- Sneezing
- Snoring (Symptom)
- Social Delays
- Social Withdrawal
- Sore in Nose
- Sore Throat
- Speech Difficulties
- Speech Problems
- Splenomegaly (Enlarged Spleen)
- Spots or Clouds in Vision
- Spotting or Bleeding During Pregnancy
- Squinting
- Stabbing Pain
- Stiffness All Over
- Stomach Bloating
- Stomach Cramps
- Stretch Marks
- Stridor
- Sudden Onset of Severe Headache
- Suprapubic Pain
- Swallowing Problems
- Swelling
- Swelling in Pregnancy
- Swollen Abdomen
- Swollen Eye
- Swollen Eyelids
- Swollen Face
- Swollen Feet
- Swollen Gums
- Swollen Lymph Nodes
- Swollen or Red Tonsils
- Symptoms of Infants
- Symptoms of Prostate
- Symptoms of the Face
- Symptoms of the Kidneys
- Symptoms of the Scrotum and Testes
T
- Tachycardia
- Temper Problems
- Temperature Insensitivity
- Tenderness
- Tenesmus
- Tension Headache
- Testicular Pain
- Thick Nails
- Thin Upper Lip
- Throat Feels Tight
- Throat Pain
- Throat Redness (Pharyngitis)
- Throat Swelling
- Throat Tightness
- Throbbing Eye Pain
- Thyroid Nodule (Lump)
- Tightness
- Tingling
- Tingling in Feet
- Tinnitus
- Toe Numbness
- Tongue Lesions
- Tongue Pain
- Tooth Pain
- Toothache
- Touch Sensitivity
- Trembling
- Tremor
U
- Uneven Shoulders
- Uneven Skin Tone
- Unexplained Weight Loss
- Unpredictable Menstruation
- Unusual Urine Color or Odor
- Unwanted Hair (Hirsutism)
- Upper Abdominal Pain
- Upper Back Pain
- Urgency
- Urinary Changes
- Urinary Hesitancy
- Urinary Incontinence (Leaking Urine)
- Urinary Retention (Unable to Urinate)
- Urinary Symptoms
- Urinary Urgency
- Urine Leakage
- Urticaria (Hives)
- Uterine Contractions
V
- Vaginal Bleeding
- Vaginal Bleeding After Menopause
- Vaginal Burning
- Vaginal Discharge
- Vaginal Dryness
- Vaginal Irritation
- Vaginal Itching
- Vaginal Odor
- Vaginal Pain
- Vaginal Pressure
- Vaginal Rash
- Vaginal Redness
- Vertigo
- Violent Behavior
- Visible Peristalsis
- Vision Changes
- Vision Loss
- Vision Problems
- Visual Disturbances
- Voice Changes
- Vomiting
- Vomiting Blood
- Vomiting in Infants
- Vulval Lesions
- Vulvar Irritation
- Vulvar Pain
- Vulvar Sore
- Vulvar Swelling