Health reference
Conditions, symptoms and clinical context
Plain-language reference pages designed around entities, evidence, source provenance and links to related medicines and data.
Condition reference
Browse conditions, symptoms and geography-aware reference data.
A
12 conditionsAbnormal uterine bleeding
Heavy, irregular and intermenstrual bleeding, anemia, diagnostic work-up and cause-directed treatment.
Acute cholecystitis
Acute gallbladder inflammation, ultrasound diagnosis, hospital care and early cholecystectomy.
Acute pancreatitis
Acute pancreatic inflammation, severe upper abdominal pain, lipase testing, supportive care and cause-specific treatment.
Alcohol use disorder
Preferred modern framework for “alcoholism”: DSM-5-TR alcohol use disorder, withdrawal safety and medication/behavioral treatment.
Ankylosing spondylitis
Evidence-based condition reference.
Anovulatory infertility
Absent or irregular ovulation, endocrine causes, cycle clues, fertility testing, cause-specific treatment and ovulation induction.
Anti-GBM disease (Goodpasture disease)
Rare anti-GBM autoimmune pulmonary–renal disease causing rapidly progressive glomerulonephritis and possible lung hemorrhage.
Anuria
Near-absent urine output, emergency causes, distinction from retention, acute kidney injury work-up and cause-directed treatment.
Appendicitis
Acute appendiceal inflammation, abdominal pain, imaging, antibiotics and appendectomy.
Ascariasis
Ascaris roundworm infection: fecal-soil transmission, pulmonary migration, stool diagnosis, deworming and obstruction risks.
Aspergillosis
Allergic, chronic, fungal-ball and invasive Aspergillus disease with risk-based diagnosis and subtype-specific treatment.
Atrial fibrillation
Irregular rhythm, ECG diagnosis, stroke prevention, anticoagulation, rate control, rhythm control and ablation.
B
2 conditionsBenign prostatic hyperplasia
Enlarged prostate, lower urinary tract symptoms, urinary retention, evaluation, medicines and procedures.
Bronchiectasis
Permanent airway dilation causing chronic sputum, recurrent infections and hemoptysis; diagnosed by CT and managed with airway clearance.
C
5 conditionsCerebral palsy
Evidence-based condition reference.
Chlamydia
Asymptomatic chlamydial infection, NAAT testing, antibiotic treatment, partner management, pregnancy and follow-up.
Cholera
Evidence-based condition reference.
Coronary artery disease
Atherosclerotic coronary disease, angina, heart-attack warning signs, diagnosis, prevention and treatment.
COVID-19
Evidence-based condition reference.
D
5 conditionsDelirium
Acute fluctuating inattention and confusion from medical, medication, metabolic or withdrawal causes; diagnose the trigger and treat supportively.
Delirium tremens
Severe alcohol withdrawal with delirium, autonomic overactivity and seizure risk requiring urgent monitored treatment.
Dementia
Progressive cognitive decline affecting independence, including Alzheimer, vascular, Lewy body and frontotemporal dementias.
Diminished ovarian reserve
Low ovarian reserve, AMH and AFC interpretation, age, IVF response and the distinction from premature ovarian insufficiency.
Dysmenorrhea
Primary menstrual cramps and secondary period pain from endometriosis or other pelvic disease, with NSAID and hormonal treatment.
E
2 conditionsF
1 conditionG
4 conditionsGallstones
Silent and symptomatic gallstones, biliary colic, ultrasound, cholecystectomy and bile-duct complications.
Gaucher disease
Inherited GBA1 lysosomal storage disease with splenic, hepatic, blood, skeletal and sometimes neurologic involvement.
Gestational diabetes
Antenatal glucose testing, pregnancy-specific management, medication when needed and postpartum follow-up.
Glomerulonephritis
Glomerular inflammation causing hematuria, proteinuria, edema and kidney dysfunction, with serology and biopsy-guided treatment.
H
10 conditionsHeart failure
Breathlessness, edema, natriuretic peptides, echocardiography, ejection fraction and long-term heart-failure care.
Hemorrhoids
Internal and external hemorrhoids, rectal bleeding, examination, conservative care and office procedures.
Hepatitis
Liver inflammation from viral and nonviral causes, including hepatitis A/B/C testing, vaccination, antiviral treatment and chronic liver risk.
High cholesterol
LDL, HDL, triglycerides, lipid testing, cardiovascular risk and lipid-lowering treatment.
HIV infection and AIDS
HIV diagnosis, viral load and CD4 monitoring, universal ART, AIDS, U=U and long-term prevention-focused care.
Hydrosalpinx
Fluid-filled damaged fallopian tube, infertility and IVF effects, imaging, salpingectomy, tubal occlusion and selected aspiration.
Hyperemesis gravidarum
Severe nausea and vomiting in pregnancy, dehydration, weight loss, antiemetics, IV fluids and hospital care.
Hypertension
Blood pressure measurement, diagnostic confirmation, cardiovascular risk, lifestyle and antihypertensive treatment.
Hyperthyroidism
Symptoms, TSH and thyroid hormone testing, Graves disease and cause-directed treatment of overactive thyroid.
Hypothyroidism
Symptoms, TSH and free T4 testing, levothyroxine treatment and monitoring of underactive thyroid.
I
4 conditionsInfertility
Definition, male and female causes, couple-level fertility assessment, IUI, IVF and when to seek evaluation.
Influenza (flu)
Abrupt viral respiratory illness, high-risk complications, molecular testing, antivirals and seasonal vaccination.
Inguinal hernia
Groin hernia symptoms, emergency warning signs, physical diagnosis and surgical repair.
Insomnia
Chronic difficulty initiating or maintaining sleep, clinical diagnosis and first-line cognitive behavioral therapy for insomnia.
K
1 conditionL
1 conditionM
6 conditionsMalaria
Malaria symptoms, parasite-based diagnosis, severe disease, antimalarial treatment, prevention and vaccines.
Male infertility
Male-factor infertility, semen analysis, azoospermia, hormonal and structural causes, treatment, IUI and IVF/ICSI.
Maternal sepsis
Life-threatening infection in pregnancy or postpartum, early warning signs, antibiotics, resuscitation and source control.
Meningitis
Meningitis causes, emergency warning signs, lumbar puncture, urgent antibiotic treatment, complications and vaccination.
Metabolic syndrome
Waist circumference, blood pressure, glucose, triglycerides and HDL in the metabolic-syndrome risk cluster.
Multiple sclerosis
Evidence-based condition reference.
O
1 conditionP
9 conditionsPelvic inflammatory disease
Pelvic pain, clinical diagnosis, prompt antibiotics, partner management and reproductive complications.
Placenta previa
Painless bleeding, ultrasound follow-up, placenta accreta risk and delivery planning for placenta previa.
Polycystic ovary syndrome (PCOS)
Irregular ovulation, androgen-related symptoms, metabolic risk, diagnosis, symptom management and fertility care.
Postpartum depression
Depression after childbirth, baby-blues distinction, screening, safety assessment and treatment.
Postpartum hemorrhage
Life-threatening bleeding after childbirth, objective recognition, rapid treatment bundle and escalation.
Prediabetes
A1C and glucose thresholds, risk factors, testing and prevention of progression to type 2 diabetes.
Preeclampsia
High blood pressure after 20 weeks, organ involvement, monitoring, seizure prevention and timing of birth.
Premature ovarian insufficiency
Premature ovarian insufficiency before age 40, menstrual changes, fertility, hormone therapy and long-term health.
Prostatitis
Bacterial prostatitis, chronic pelvic pain syndrome, urinary symptoms, diagnosis and cause-directed treatment.
R
1 conditionS
2 conditionsSickle cell disease
Sickle cell disease genotypes, pain crises, anaemia, infection and stroke risk, diagnosis and disease-modifying care.
Sinusitis
Acute viral and bacterial rhinosinusitis, duration-based diagnosis, selective antibiotics, chronic disease and complication red flags.
T
3 conditionsTubal factor infertility
Blocked or damaged fallopian tubes, HSG and contrast testing, proximal and distal disease, tubal surgery, IVF and ectopic risk.
Tuberculosis
Tuberculosis symptoms, rapid diagnosis, drug resistance, combination treatment, prevention and TB/HIV care.
Type 2 diabetes
Evidence-based condition reference.
U
3 conditionsUnexplained infertility
Diagnosis of exclusion after standard fertility testing, prognosis, expectant management, stimulated IUI and IVF.
Urinary retention
Acute and chronic bladder retention, postvoid residual testing, catheter drainage and cause-directed treatment.
Uterine fibroids
Heavy menstrual bleeding, pelvic pressure, ultrasound diagnosis, medication, myomectomy and other treatment options.