Sever's Disease — Heel Pain in Active Kids (Altamonte Springs Podiatry)

When a child is complaining of heel pain and a parent searches for information on Sever's disease, the clinical picture is often clearer than many expect. Podiatrists at Central Florida Foot & Ankle Institute's Altamonte Springs office evaluate this condition throughout the year, particularly during soccer season, track season, and back to school athletics. Sever's disease is not dangerous, is not a true disease in the pathological sense, and resolves completely with appropriate management. What Is Sever's Disease? Sever's disease — the clinical term is calcaneal apophysitis — is an irritation of the growth plate (apophysis) at the posterior (back) surface of the calcaneus (heel bone) in skeletally immature children. It is the most common cause of heel pain in children between approximately 8 and 14 years of age, a pattern well documented in the pediatric sports medicine literature and recognized by both the American Podiatric Medical Association (APMA) and the American Academy of Orthopaedic Surgeons (AAOS). The word disease is a historical misnomer. Calcaneal apophysitis is a mechanical overuse problem, not an infection and not a condition that causes permanent structural damage. The growth plate at the posterior calcaneus is a zone of cartilaginous (non ossified, or not yet hardened into bone) tissue that is inherently more vulnerable to traction stress than mature bone. The Achilles tendon inserts directly onto this apophysis and transmits substantial tensile force with every step, jump, and sprint. Why Does It Happen? During growth spurts, the calcaneal bone frequently lengthens faster than the surrounding musculotendinous structures can accommodate through remodeling. The Achilles tendon — particularly the gastrocnemius soleus complex — attaches directly to the calcaneal apophysis. When this tendon is relatively tight, as is common during periods of rapid bone elongation, it exerts increased traction on the apophysis with each step. Repetitive impact loading superimposed on this pre existing traction stress generates the microtrauma and local inflammatory response that produces pain. The mechanism is well characterized in the orthopedic and podiatric literature as an apophyseal stress injury analogous to Osgood Schlatter disease at the tibial tubercle. Common contributing factors: Rapid growth spurts (longitudinal bone growth outpacing soft tissue accommodation) High impact sports: soccer, basketball, gymnastics, running, and cheerleading Hard playing surfaces Worn or mechanically inadequate athletic footwear Gastrocnemius soleus tightness (tight calf muscles) Pes planus (flat foot) or pes cavus (high arch), both of which alter heel loading mechanics Altamonte Springs has an active youth sports community — soccer leagues, recreational programs, and school athletics operate year round. This sustained activity environment is broadly beneficial for pediatric health, but it also creates conditions in which calcaneal apophysitis appears frequently in clinical practice. Presentation: What Children Experience Children with Sever's disease typically describe: Pain at the posterior aspect of one or both heels (bilateral involvement is common) Pain that intensifies during and immediately after athletic activity Morning stiffness or pain after a period of inactivity Tendency to walk on the forefoot (toe walking) to avoid heel contact Tenderness elicited by the squeeze test — mediolateral compression of the calcaneal body at the growth plate level Parents often observe limping at the end of practice sessions, reluctance to run at full effort, or requests to leave activities early. These are clinically significant signs that warrant formal evaluation. Diagnosing Sever's Disease At the Altamonte Springs clinic, the diagnosis is primarily clinical — based on the child's age, activity history, and physical examination findings. Radiographs (X rays) are obtained to exclude alternative diagnoses, including calcaneal stress fracture, bone cyst, or other structural pathology. Importantly, the radiographic appearance of the calcaneal growth plate does not reliably distinguish Sever's disease from normal developmental variation; the diagnosis rests on the clinical presentation. Differential diagnoses considered include: Plantar fasciitis (uncommon in children but possible) Calcaneal stress fracture Achilles tendinopathy Haglund's deformity Rare primary bone tumors (screened via clinical red flag assessment) Accurate diagnosis ensures that treatment addresses the actual source of the child's pain. Sever's Disease Treatment: Conservative Care Works At Central Florida Foot & Ankle Institute, management follows a conservative first protocol that is effective for virtually all presentations of calcaneal apophysitis. Conservative care is not merely the preferred first step — it is, in practice, the complete treatment for this condition. Activity Modification Temporary reduction of high impact loading gives the apophysis time to