Symptoms and Signs of Lumbar Disc Herniation

Protruding Disc	L3-4	L4-5	L5, S1
Affected Nerve	L4 Nerve Root	L5 Nerve Root	S1 Nerve Root
Pain Location	Sacroiliac region, hip, anterior inner thigh, anterior leg	Sacroiliac region, hip, posterior outer thigh and leg	Sacroiliac region, hip, thigh, leg, heel, and outer foot
Numbness Location	Anterior inner leg	Outer leg or dorsum of foot, including big toe	Outer leg and foot, including the outer three toes
Muscle Strength Change	Weak knee extension	Weak big toe dorsiflexion	Weak foot plantar flexion and big toe flexion
Reflex Change	Knee reflex decreased or absent	No change	Ankle reflex decreased or absent