Purpose: to evaluate the effect of Gallium Arsenide laser versus pulsed electromagnetic field on healing of pressure ulcers. Methods of evaluation: - (Measurement of the ulcer surface area (USA), ulcer volume measurement (UVM) and the colony count (CC). Methods: 40 diabetic patients with pressure ulcers grade II, their ages ranged from 40 – 60 years, were divided randomly into two equal groups in number. Group (A) Gallium arsenide (Ga-As) laser group:  This group was consisted of 20 patients who received the Gallium arsenide (Ga-As) laser therapy 3 times per week for 2 months  in addition to the routine conventional treatment (dressing – manage bacterial contamination – relieve pressure, friction, and shear – remove necrotic debris – correct nutritional deficits). Group (B) PEMFT  group:  20 patients who received the Pulsed electromagnetic field therapy (PEMFT) 3 times per week for 2 months  in addition to the routine conventional treatment (dressing – manage bacterial contamination – relieve pressure, friction, and shear – remove necrotic debris – correct nutritional deficits). Results: Results showed that both the Ga-As laser and the PEMFT, were significantly effective in improving healing of pressure ulcers as manifested by the highly decreased USA, UVM and CC in both groups.

Purpose: To evaluate the effects of polarized light therapy versus monochromatic infrared energy in the treatment of venous leg ulcers. Methods of evaluation: - (Measurement of the ulcer surface area (USA) and the ulcer volume measurement (UVM). Methods: Forty patients suffering from stage 2 lower limb venous ulcers were selected randomly from the vascular and general surgeries departments of Kasr-El-Aini Hospital. These patients were divided randomly into two equal groups in number: One was treated with the polarized light therapy (BLT) besides the regular ulcer care (topical and general medications as well as the intermittent surgical curettage) for three months, while the other was treated with the monochromatic infrared energy (MIRE) therapy, medical treatment and the and the regular ulcer care (topical and general medications as well as the intermittent surgical curettage) for three months or till healing, their ages were ranged from 50 to 65 years. Results: Results showed that both the BLT and MIRE were effective in enhancing the healing of the lower limb venous ulcers as manifested by the highly significant decreases in ulcer surface area  (USA) and ulcer volume measurement  (UVM).