Paincyclopedia
  • Pain recognition
  • Neck pain
    • Neck pain without arm pain
  • Shoulder pain
    • Shoulder infection, cancer
    • Shoulder muscle pain to arm
    • Local shoulder muscle pain
    • Shoulder muscle pain - back side
    • Frontal shoulder/arm muscle pain
    • Shoulder impinged nerve pain
    • Posterior shoulder pain
    • Shoulder and arm pain - Thoracic outlet syndrome
    • Shoulder neck pain from torticollis
    • Shoulder/ upper back pain from liver gallbladder
    • Shoulder/upper back pain from abscess of the liver
  • Arm pain
    • Arm pain from posture
  • Abdominal pain
    • Abdominal pain from nerve
    • Abdominal pain from Appendicitis
    • Abdominal pain from colon
    • Abdominal pain from lactose intolerance
    • Abdominal pain from adrenal failure
    • Abdominal pain from porphyria
    • Abdominal pain: liver gallbladder
    • Abdominal pain from air in the abdomen
    • Abdominal pain/kidney, urinary bladder
    • Abdominal pain/DKA
    • Abdominal pain after food postprandial
    • Abdominal pain omental infarction
    • Abdominal pain/blocked artery or vein
    • Abdominal pain/mesenteric panniculitis, Abdominal pain
    • Abdominal pain: ovarian torsion
    • Abdominal pain/bowel obstruction
    • Abdominal pain/ volvulus
    • Abdominal pain-aorta dissection
    • Abdominal pain/Belly dancer syndrome
    • Abdominal pain/Spleen infarction
    • Abdominal pain/Herlyn-Werner-Wunderlich Syndrome
    • Abdominal pain/liver abscess
    • Abdominal pain: Gallbladder diseases
    • Abdominal pain: pancreatic cancer
    • Abdominal pain: pancreas
    • Abdominal pain: lymph node cancer
    • Abdominal pain: Tabes crisis
  • Hip, thigh, calf pain
    • Buttock pain
    • Piriformis syndrome-a sciatica pain from buttock shooting to leg
    • Frontal hip and thigh pain
    • Posterior thigh and calf pain
    • Thigh pain and groin pain
    • Back and leg pain: Tabes dorsalis
  • Back pain that stays local
    • Mechanical back pain 1
    • Mechanical back pain 2
    • Mechanical back pain from fracture
    • Back pain flank pain to groin
  • Headache
  • Chest Pain
    • Chest pain: aorta arch aneurysm
    • Chest Pain from cancer
    • Chest pain with position and movement
    • Chest pain with skin rash
    • Chest pain with skin cord
    • Chest pain with short of breath
    • Chest pain with difficulty breathing
    • Chest pain with pneumomediastinum
    • Chest pain with lung infection
    • in children adolescent
    • from heart attack
    • from over eating and spicy food
    • Chest muscle pain 1
    • Chest muscle pain
    • from abdominal organ
    • from the back
    • from epipericardial fat pad necrosis
  • Foot pain
  • Knee pain
  • Flank pain
  • PMH
We visualize pain and recognize pain. 

Pain is a signal of a disease. But it can not be measured like a temperature or blood pressure.
More, different diseases can cause similar pain (as in the case of abdominal pain, chest pain or even knee pain). Same disease can cause different pain or no pain at all, such as the case of heart diseases/heart attack.

This reality has ramifications: 1. The sheer complexity and diversity of pain make it a difficult symptom to decipher by itself
. 2. Pain can not be interpreted alone, it has to be investigated in its context. 3. A pain must be understood well. Otherwise, a serious illness can and will be missed.


Then, how do we address pain? This usually begins with the verbal expression from a sufferer. It often ends with a reception/understanding from a listener (usually a doctor). From here, a diagnosis and treatment are formed to treat the pain. In a perfect world, mistake does not happen.

In reality, any imperfection of the expression (distraction from pain, literacy, personality, past experience, etc) from the pain suffer and the reception of pain (willingness, skill and attention to obtain a history, fund of knowledge, time constraint, etc) from the listener often leads to misunderstanding with consequences. 

The website visualizes pain and its context. It is a tool designed to develop a history of pain thus to facilitate the discovery of its cause.

There is no time limit and it is free. As we develop, more symptoms and signs will be visualized so as to minimize the use of words or phrases and to pick and choose what ever picture fits the pain, illness or suffering.

​We welcome input from the community. Let us build this community. 

Please choose the following pictures that best fit a pain.

Chest pain

Aorta dissection pain
Heart attack, angina pectoris
Heart attack, angina pectoris, aorta dissection pain
chest wall muscle pain pectoris major pain
chest pain from lung blood clot, pulmonary emboli or leaked air in the chest
chest pain from liver and gallbladder diseases
chest pain from angina pectoris, chest pain from heart attack
costochondritis pain chest arthritis pain
bilateral chest pain from sickle cell disease crisis

Back pain

Sharp, middle to low back pain worse with cough, twisting or movement
Abdominal aorta aneurysm dissection pain
thoracic and descending aorta aneurysm dissection pain

Abdominal pain

sharp pain from abdominal wall muscle and abdominal cutaneous nerve entrapment syndrome
Diabetic ketoacidosis pain, Porphyria abdominal pain, ischemic abdominal pain
Pain from kidney, ureter, testicles, urinary bladder, uterus and ovary.
Pain from liver and gallbladder, or pneumonia . lung infection / lung cancer
Pain from pancreas, large intestine /left colon, stomach, duodenum, lower esophagus, heart, or lung
Pain from appendix, colon, liver, gall bladder, kidney, ureter, testicles, uterus and ovary
Pain from urinary bladder, large bowel, abdominal wall muscle and nerves, uterus, ovarian cyst or bleeding,
Pain from pancreas, spleen, heart, left lung, left diaphragm, left colon, thoracic nerves

Few things is absolute in life. Always allow margin for exceptional pain. 
It is not the goal of this website to diagnose nor treat disease or patient. 

Disclaimer: This site and its entire content are for informational purpose only. It is not for diagnosis and management of diseases. It is not a substitute for a medical professional. Nothing is. Seek immediate medical assistance if you feel any pain or weakness or numbness.

Copyright 2014-2019 All rights reserved. 


Knowledge is profoundly entertaining.
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