Studies in the field of conservative treatment of spine curvature disorders increased in frequency after a long period of progressive decline lasting from the 1980s to the early 2000s. This is important since orthopedists are increasingly engaged in surgical training and performance, and less of their attention goes to conservative treatment [
1]. Spine curvature disorders are a very common occurrence among the population from childhood to old age [
2,
3]. There are three main types of spine curvature disorders: (1) lordosis, also called swayback, where the spine curves significantly in the anterior direction in the lower back; (2) kyphosis, which is characterized by an abnormally rounded upper back (more than 50 degrees of curvature); and (3) scoliosis, characterized by a lateral curve to the spine. The curve is often S-shaped or C-shaped. Structural alterations to the spine may lead to functional disturbances that, in turn, cause pain, inflammation, muscle weakness, nervous system stimuli disorders, and injuries [
4]. Spine deviations are classified as “paramorphisms” and “dysmorphisms”. The former (from Greek “παρα µορφη” meaning “close to the shape”) are skeletally non-structured spine curvatures, while the latter (from Greek “δυσμορφία” meaning “deformity”) are skeletally structured spine curvatures. One of the most common spine deviations is scoliosis. According to the Society on Scoliosis Orthopaedic and Rehabilitation Treatment (SOSORT), a share of 2–3% of the population suffer from adolescent idiopathic scoliosis [
5]. It may be a predisposing determinant for degenerative conditions of the spine in adulthood [
6,
7]. The onset could be determined by several factors including muscle weakness due to low physical activity, inappropriate posture as well as improper transportation of school equipment [
8]. Broadly, it consists of a combination of incorrect postural habits and muscle hypo/hyper-activity [
4]. Posture is a widely studied matter, as is its interaction with Kinesio Taping (KT) methods. KT methods are based on the use of acrylic adhesive tape characterized by different colors, widths, skin-similar thicknesses, and tensile forces. It is waterproof and air permeable. One of the most important KT functions is lifting the skinfold, which, in turn, promotes blood circulation and lymphatic flow [
9,
10,
11,
12]. The physiological alteration leads to more efficient drainage as well as a reduction in swelling and reabsorption of hematomas [
9,
10,
11,
12]. Initially, athletes’ injuries were treated by non-elastic tape to maintain and restore balance without joint mobility limitations [
13]. Later, KT was designed to provide free range of motion (ROM) and stability for joints through the tensile forces created in conjunction with the wave-like grain and the adhesive surface [
13]. Over time, several types of tape have been created to satisfy several purposes, such as prevention, rehabilitation and performance improvement, each with a different application technique [
11,
13]. According to Kase [
10], for muscle inhibition or muscle relaxation, the tape is applied from the muscle insertion to its origin, with the tension being weaker than 15–25% of the original tension, while for muscle strength, tape is applied from the muscle origin to the insertion, with tension stronger than 25–50% (
Figure 1) [
10]. However, other schools do not share the same application technique [
10,
14]. KT may not be capable of instantaneously modifying strength production in healthy players, but could have an important positive result on muscle fatigue resistance during frequent concentric muscle actions [
14,
15,
16,
17]. Additionally, the potential beneficial effects of KT on muscle endurance should not be ignored either [
15]. Several studies have shown good efficacy and positive effects of KT on pain [
16,
17]. In detail, in both the first research group [
16] found that KT users had an amelioration in pain compared to the control group. In the latter [
17], where groups were additionally sorted according to the tension/no tension application, a similar result was found. KT has an effect on other pain-related disorders, such as osteoarthritis (OA). In fact, authors recently showed the positive effect of KT on joint ROM, pain, swelling, and muscle force in subjects affected by knee OA [
18,
19]. Conversely, a detailed study carried out by Wagek et al. [
20] proved that there was no amelioration in terms of pain, swelling, or muscle force in subjects affected by knee OA. Less controversial are studies about the positive effect of KT on pain secondary to post-training muscle damage [
21,
22]. KT application was demonstrated to have a beneficial effect on delayed onset of muscle soreness after eccentric muscle contractions involving both lower and upper limbs [
22]. Quicker recovery post-training [
21,
22,
23] as well as the restoration of myofascial pain [
24] were also reported. The neuromuscular system, proprioception, and posture are, in turn, affected by KT, as reported in a survey conducted in infants suffering from cerebral palsy [
25]. Movement control was a key finding of a study conducted in patients suffering from axial dystonia, and it turned out that the symptoms were ameliorated by KT application [
26]. Similar results were achieved in patients with hemiplegia secondary to stroke [
27,
28] as well as in patients with Parkinson’s disease, who showed ameliorations in axial postural disorders, including body posture alterations, body unbalance, and walking disability, in an ad-hoc rehabilitative protocol based on proprioceptive stimulation provided by KT [
29]. Several studies focused on spine disorders that, as mentioned above have been determined to involve several factors, including muscle weakness, muscle unbalance [
4,
8], and also pain [
30] and proprioception alteration [
31]. Studies on KT application have been conducted over the years; however, most of them have focused on the lower back only [
2,
26,
30], and just a few have concerned the possible effects on other spine regions and spine deviations in general [
30,
31,
32,
33,
34,
35,
36,
37]. The aim of this narrative review is to investigate what the literature reports with regard to the application of KT in spine curvature disorders and to determine whether this method may achieve such a substantial and beneficial effect as to be considered as an integrative and non-invasive method to be implemented in addition and/or substitution to traditional rehabilitation programs.