• Pacemaker implantation

• Paget's disease of bone

• Paget's disease of the nipple

• Pain in the back of the hand

• Pain in the ball of the foot

• Pain in the bottom of the foot

• Pain in the palm of the hand

• Pain in the top of the foot

• Pancreas transplant

• Pancreatic cancer

• Paralysis

• Parkinson's disease

• Patau's syndrome

• Peak flow test

• Pelvic inflammatory disease

• Pelvic organ prolapse

• Pelvic pain

• Pemphigus vulgaris

• Penile cancer

• Perforated eardrum

• Pericarditis

• Period pain

• Periods

• Peripheral arterial disease (PAD)

• Peripheral neuropathy

• Peritonitis

• Persistent trophoblastic disease and choriocarcinoma

• PET scan

• Phaeochromocytoma

• Phenylketonuria

• Phlebitis (superficial thrombophlebitis)

• Phosphate test

• Photodynamic therapy (PDT)

• Physiotherapy

• Piles (haemorrhoids)

• Pilonidal sinus

• Pins and needles

• PIP breast implants

• Pityriasis rosea

• Pityriasis versicolor

• Plagiocephaly and brachycephaly (flat head syndrome)

• Plantar fasciitis

• Plastic surgery

• Pleurisy

• PMS (premenstrual syndrome)

• Pneumonia

• Poisoning

• Polio

• Polycystic ovary syndrome

• Polyhydramnios (too much amniotic fluid)

• Polymorphic light eruption

• Polymyalgia rheumatica

• Pompholyx (dyshidrotic eczema)

• Post-herpetic neuralgia

• Postmenopausal bleeding

• Post-mortem

• Post-polio syndrome

• Postural tachycardia syndrome (PoTS)

• Potassium test

• Prader-Willi syndrome

• Predictive genetic tests for cancer risk genes

• Pre-eclampsia

• Pressure ulcers (pressure sores)

• Priapism (painful erections)

• Primary biliary cholangitis (primary biliary cirrhosis)

• Probiotics

• Problems swallowing pills

• Progressive supranuclear palsy

• Prosopagnosia (face blindness)

• Prostate cancer

• Prostate problems

• Prostatitis

• Psoriasis

• Psoriatic arthritis

• Psychiatry

• Pubic lice

• Pudendal neuralgia

• Pulmonary embolism

• Pulmonary hypertension

• Pyoderma gangrenosum