Hello, and thank you for your question about the tightness you're feeling four weeks after a groin and buttock (crescent) thigh lift with liposuction. What you're experiencing — tightness, numbness, and stiffness after sitting — is actually very common during the early stages of recovery. At four weeks post-op, your body is still healing from extensive internal work, including tissue excision, liposuction, and deep suturing to the pelvic periosteum. The sensation of tightness, particularly in the inner thigh and under the buttocks, is often due to a combination of swelling, scar tissue formation, nerve irritation, and the natural contracture of healing tissues. When sitting for a prolonged time, the incision areas and surrounding tissues can become compressed, leading to temporary tightness or stiffness. Once you stand or begin walking, blood flow increases, and the tissue warms up and stretches slightly — which is why movement helps alleviate the sensation. Numbness is also a normal and expected part of healing. During thigh lifts, some small sensory nerves are inevitably cut or stretched, especially around the groin and upper thigh. Sensation typically returns slowly over several months, although in some cases, a small area may remain permanently numb. To help ease the tightness: Stay gently active throughout the day with light walking to keep circulation moving. Avoid sitting for long periods — get up and move every 30–60 minutes. Stretching and lymphatic massage (only if cleared by your surgeon) can help improve mobility and reduce swelling. Continue wearing your compression garment as instructed, since it supports healing tissue and minimizes swelling. What you’re feeling is a normal part of the healing timeline, and most patients notice significant improvement in tightness by the 8–12 week mark, with further gains over the next 3–6 months. If the tightness becomes painful, worsens, or is accompanied by new swelling or redness, it’s important to follow up with your plastic surgeon to rule out complications such as fluid collections or nerve entrapment. But based on your description, it sounds like you are healing well and just need more time and patience as your body continues to recover. Sincerely, Dr. Katzen