Several features characterise spasticity which may be present in patients with lesions of the upper motor neurones of the brain and spinal cord. Spasticity gives rise to disability depending on the site and extent of the lesion. The manifestations of spasticity and its direct consequences on the locomotor system are discussed in this paper together with the factors affecting it. Management strategies in the rehabilitation of patients with spasticity are outlined, with emphasis on preserving maximum possible function in mobility and activities of daily living.